CODEBASE: Fix lint errors 1 (#1732)

.eslintrc.js

@@ -34,6 +34,7 @@ module.exports = {
     "@typescript-eslint/ban-ts-comment": "off",
     "@typescript-eslint/no-explicit-any": "off",
     "react/no-unescaped-entities": "off",
+    "@typescript-eslint/restrict-template-expressions": "off",
   },
   settings: {
     react: {

src/@types/global.d.ts

@@ -31,4 +31,21 @@ declare global {
       };
     };
   }
+
+  /**
+   * "loader" is not exposed in the public API.
+   */
+  module "monaco-editor" {
+    namespace languages {
+      interface ILanguageExtensionPoint {
+        loader: () => Promise<{
+          language: {
+            tokenizer: {
+              root: any[];
+            };
+          };
+        }>;
+      }
+    }
+  }
 }

src/CodingContractGenerator.ts

@@ -159,7 +159,7 @@ function sanitizeRewardType(rewardType: CodingContractRewardType): CodingContrac
     try {
       return Factions[fac].getInfo().offerHackingWork;
     } catch (e) {
-      console.error(`Error when trying to filter Hacking Factions for Coding Contract Generation: ${e}`);
+      console.error("Error when trying to filter Hacking Factions for Coding Contract Generation", e);
       return false;
     }
   });

src/Corporation/Actions.ts

@@ -207,8 +207,8 @@ export function sellMaterial(material: Material, amount: string, price: string):
   try {
     if (temp.includes("MP")) throw "Only one reference to MP is allowed in sell price.";
     temp = eval?.(temp);
-  } catch (e) {
-    throw new Error("Invalid value or expression for sell price field: " + e);
+  } catch (error) {
+    throw new Error("Invalid value or expression for sell price field", { cause: error });
   }
 
   if (temp == null || isNaN(parseFloat(temp))) {
@@ -231,8 +231,8 @@ export function sellMaterial(material: Material, amount: string, price: string):
     tempQty = tempQty.replace(/INV/g, material.productionAmount.toString());
     try {
       tempQty = eval?.(tempQty);
-    } catch (e) {
-      throw new Error("Invalid value or expression for sell quantity field: " + e);
+    } catch (error) {
+      throw new Error("Invalid value or expression for sell quantity field", { cause: error });
     }
 
     if (tempQty == null || isNaN(parseFloat(tempQty))) {
@@ -263,8 +263,8 @@ export function sellProduct(product: Product, city: CityName, amt: string, price
     try {
       if (temp.includes("MP")) throw "Only one reference to MP is allowed in sell price.";
       temp = eval?.(temp);
-    } catch (e) {
-      throw new Error("Invalid value or expression for sell price field: " + e);
+    } catch (error) {
+      throw new Error("Invalid value or expression for sell price field.", { cause: error });
     }
     if (temp == null || isNaN(parseFloat(temp))) {
       throw new Error("Invalid value or expression for sell price field.");
@@ -291,8 +291,8 @@ export function sellProduct(product: Product, city: CityName, amt: string, price
     temp = temp.replace(/INV/g, product.cityData[city].stored.toString());
     try {
       temp = eval?.(temp);
-    } catch (e) {
-      throw new Error("Invalid value or expression for sell quantity field: " + e);
+    } catch (error) {
+      throw new Error("Invalid value or expression for sell quantity field", { cause: error });
     }
 
     if (temp == null || isNaN(parseFloat(temp))) {
@@ -585,13 +585,16 @@ Attempted export amount: ${amount}`);
     }
     if (!error && isNaN(evaluated)) error = "evaluated value is NaN";
     if (error) {
-      throw new Error(`Error while trying to set the exported amount of ${material.name}.
+      throw new Error(
+        `Error while trying to set the exported amount of ${material.name}.
 Error occurred while testing keyword replacement with ${testReplacement}.
 Your input: ${amount}
 Sanitized input: ${sanitizedAmt}
 Input after replacement: ${replaced}
-Evaluated value: ${evaluated}
-Error encountered: ${error}`);
+Evaluated value: ${evaluated}` +
+          // eslint-disable-next-line @typescript-eslint/no-base-to-string
+          `Error encountered: ${error}`,
+      );
     }
   }
 

src/Corporation/ui/ExpandNewCity.tsx

@@ -29,8 +29,8 @@ export function ExpandNewCity(props: IProps): React.ReactElement {
   function expand(): void {
     try {
       purchaseOffice(corp, division, city);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
       return;
     }
 

src/Corporation/ui/NewDivisionTab.tsx

@@ -39,8 +39,8 @@ export function NewDivisionTab(props: IProps): React.ReactElement {
     if (disabledText) return;
     try {
       createDivision(corp, industry, name);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
       return;
     }
 

src/Corporation/ui/modals/BuybackSharesModal.tsx

@@ -43,8 +43,8 @@ export function BuybackSharesModal(props: IProps): React.ReactElement {
       props.onClose();
       props.rerender();
       setShares(NaN);
-    } catch (err) {
-      dialogBoxCreate(`${err}`);
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
   }
 

src/Corporation/ui/modals/ExportModal.tsx

@@ -59,8 +59,8 @@ export function ExportModal(props: ExportModalProps): React.ReactElement {
     try {
       if (!targetDivision || !targetCity) return;
       actions.exportMaterial(targetDivision, targetCity, props.mat, exportAmount);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
     props.onClose();
   }

src/Corporation/ui/modals/FindInvestorsModal.tsx

@@ -37,8 +37,8 @@ export function FindInvestorsModal(props: IProps): React.ReactElement {
       );
       props.onClose();
       props.rerender();
-    } catch (err) {
-      dialogBoxCreate(`${err}`);
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
   }
 

src/Corporation/ui/modals/GoPublicModal.tsx

@@ -45,8 +45,8 @@ export function GoPublicModal(props: IProps): React.ReactElement {
       props.onClose();
       props.rerender();
       setShares(NaN);
-    } catch (err) {
-      dialogBoxCreate(`${err}`);
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
   }
 

src/Corporation/ui/modals/IssueDividendsModal.tsx

@@ -27,8 +27,8 @@ export function IssueDividendsModal(props: IProps): React.ReactElement {
     if (percent === null) return;
     try {
       actions.issueDividends(corp, percent / 100);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
 
     props.onClose();

src/Corporation/ui/modals/IssueNewSharesModal.tsx

@@ -55,8 +55,8 @@ export function IssueNewSharesModal(props: IProps): React.ReactElement {
       );
       props.onClose();
       props.rerender();
-    } catch (err) {
-      dialogBoxCreate(`${err}`);
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
   }
 

src/Corporation/ui/modals/MakeProductModal.tsx

@@ -47,8 +47,8 @@ export function MakeProductModal(props: IProps): React.ReactElement {
     if (isNaN(design) || isNaN(marketing)) return;
     try {
       actions.makeProduct(corp, division, city, name, design, marketing);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
     props.onClose();
   }

src/Corporation/ui/modals/PurchaseMaterialModal.tsx

@@ -67,8 +67,8 @@ function BulkPurchaseSection(props: IBPProps): React.ReactElement {
   function bulkPurchase(): void {
     try {
       actions.bulkPurchase(corp, division, props.warehouse, props.mat, parseFloat(buyAmt));
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
     props.onClose();
   }
@@ -119,8 +119,8 @@ export function PurchaseMaterialModal(props: IProps): React.ReactElement {
     if (buyAmt === null) return;
     try {
       actions.buyMaterial(division, props.mat, buyAmt);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
 
     props.onClose();

src/Corporation/ui/modals/ResearchModal.tsx

@@ -39,8 +39,8 @@ function Upgrade({ n, division }: INodeProps): React.ReactElement {
     if (n === null || disabled) return;
     try {
       actions.research(division, n.researchName);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
       return;
     }
 

src/Corporation/ui/modals/SellMaterialModal.tsx

@@ -24,8 +24,8 @@ export function SellMaterialModal(props: IProps): React.ReactElement {
   function sellMaterial(): void {
     try {
       actions.sellMaterial(props.mat, amt, price);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
     props.onClose();
   }

src/Corporation/ui/modals/SellProductModal.tsx

@@ -31,8 +31,8 @@ export function SellProductModal(props: IProps): React.ReactElement {
   function sellProduct(): void {
     try {
       actions.sellProduct(props.product, props.city, iQty, px, checked);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
     }
 
     props.onClose();

src/Corporation/ui/modals/SmartSupplyModal.tsx

@@ -27,8 +27,9 @@ function SSoption(props: ISSoptionProps): React.ReactElement {
       const matName = props.matName;
       const material = props.warehouse.materials[matName];
       setSmartSupplyOption(props.warehouse, material, newValue);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
+      return;
     }
     setChecked(newValue);
   }
@@ -40,8 +41,9 @@ function SSoption(props: ISSoptionProps): React.ReactElement {
       const matName = props.matName;
       const material = props.warehouse.materials[matName];
       setSmartSupplyOption(props.warehouse, material, newValue);
-    } catch (err) {
-      dialogBoxCreate(err + "");
+    } catch (error) {
+      dialogBoxCreate(String(error));
+      return;
     }
     setChecked(newValue);
   }

src/Electron.tsx

@@ -12,7 +12,7 @@ import { CONSTANTS } from "./Constants";
 import { commitHash } from "./utils/helpers/commitHash";
 import { resolveFilePath } from "./Paths/FilePath";
 import { hasScriptExtension } from "./Paths/ScriptFilePath";
-import { handleGetSaveDataError } from "./Netscript/ErrorMessages";
+import { handleGetSaveDataInfoError } from "./Netscript/ErrorMessages";
 
 interface IReturnWebStatus extends IReturnStatus {
   data?: Record<string, unknown>;
@@ -103,14 +103,14 @@ function initAppNotifier(): void {
   const funcs = {
     terminal: (message: string, type?: string) => {
       const typesFn: Record<string, (s: string) => void> = {
-        info: Terminal.info,
-        warn: Terminal.warn,
-        error: Terminal.error,
-        success: Terminal.success,
+        info: (s) => Terminal.info(s),
+        warn: (s) => Terminal.warn(s),
+        error: (s) => Terminal.error(s),
+        success: (s) => Terminal.success(s),
       };
       let fn;
       if (type) fn = typesFn[type];
-      if (!fn) fn = Terminal.print;
+      if (!fn) fn = (s: string) => Terminal.print(s);
       fn.bind(Terminal)(message);
     },
     toast: (message: string, type: ToastVariant, duration = 2000) => SnackbarEvents.emit(message, type, duration),
@@ -124,12 +124,10 @@ function initSaveFunctions(): void {
   const funcs = {
     triggerSave: (): Promise<void> => saveObject.saveGame(true),
     triggerGameExport: (): void => {
-      try {
-        saveObject.exportGame();
-      } catch (error) {
+      saveObject.exportGame().catch((error) => {
         console.error(error);
         SnackbarEvents.emit("Could not export game.", ToastVariant.ERROR, 2000);
-      }
+      });
     },
     triggerScriptsExport: (): void => exportScripts("*", Player.getHomeComputer()),
     getSaveData: async (): Promise<{ save: SaveData; fileName: string }> => {
@@ -159,22 +157,28 @@ function initElectronBridge(): void {
   const bridge = window.electronBridge;
   if (!bridge) return;
 
-  bridge.receive("get-save-data-request", async () => {
-    let saveData;
-    try {
-      saveData = await window.appSaveFns.getSaveData();
-    } catch (error) {
-      handleGetSaveDataError(error);
-      return;
-    }
-    bridge.send("get-save-data-response", saveData);
+  bridge.receive("get-save-data-request", () => {
+    window.appSaveFns
+      .getSaveData()
+      .then((saveData) => {
+        bridge.send("get-save-data-response", saveData);
+      })
+      .catch((error) => {
+        handleGetSaveDataInfoError(error);
+      });
   });
-  bridge.receive("get-save-info-request", async (saveData: unknown) => {
+  bridge.receive("get-save-info-request", (saveData: unknown) => {
     if (typeof saveData !== "string" && !(saveData instanceof Uint8Array)) {
       throw new Error("Error while trying to get save info");
     }
-    const saveInfo = await window.appSaveFns.getSaveInfo(saveData);
-    bridge.send("get-save-info-response", saveInfo);
+    window.appSaveFns
+      .getSaveInfo(saveData)
+      .then((saveInfo) => {
+        bridge.send("get-save-info-response", saveInfo);
+      })
+      .catch((error) => {
+        handleGetSaveDataInfoError(error, true);
+      });
   });
   bridge.receive("push-save-request", (params: unknown) => {
     if (typeof params !== "object") throw new Error("Error trying to push save request");
@@ -182,7 +186,7 @@ function initElectronBridge(): void {
     window.appSaveFns.pushSaveData(save, automatic);
   });
   bridge.receive("trigger-save", () => {
-    return window.appSaveFns
+    window.appSaveFns
       .triggerSave()
       .then(() => {
         bridge.send("save-completed");

src/Faction/ui/FactionRoot.tsx

@@ -97,7 +97,7 @@ function MainPage({ faction, rerender, onAugmentations }: IMainProps): React.Rea
     startWork();
   }
 
-  // We have a special flag for whether the player this faction is the player's
+  // We have a special flag for whether this faction is the player's
   // gang faction because if the player has a gang, they cannot do any other action
   const isPlayersGang = Player.gang && Player.getGangName() === faction.name;
 

src/GameOptions/ui/GameOptionsSidebar.tsx

@@ -90,6 +90,7 @@ export const GameOptionsSidebar = (props: IProps): React.ReactElement => {
     try {
       await saveObject.importGame(importData.saveData);
     } catch (e: unknown) {
+      console.error(e);
       SnackbarEvents.emit(String(e), ToastVariant.ERROR, 5000);
     }
 

src/Gang/Gang.ts

@@ -112,7 +112,7 @@ export class Gang {
       this.processTerritoryAndPowerGains(cycles);
       this.storedCycles -= cycles;
     } catch (e: unknown) {
-      console.error(`Exception caught when processing Gang: ${e}`);
+      console.error("Exception caught when processing Gang", e);
     }
 
     // Handle "nextUpdate" resolver after this update

src/Go/boardAnalysis/example.js

@@ -1,96 +0,0 @@
-/** @param {NS} ns */
-export async function main(ns) {
-  let result;
-
-  do {
-    const board = ns.go.getBoardState();
-    const validMoves = ns.go.analysis.getValidMoves();
-
-    const [growX, growY] = getGrowMove(board, validMoves);
-    const [randX, randY] = getRandomMove(board, validMoves);
-    // Try to pick a grow move, otherwise choose a random move
-    const x = growX ?? randX;
-    const y = growY ?? randY;
-
-    if (x === undefined) {
-      // Pass turn if no moves are found
-      result = await ns.go.passTurn();
-    } else {
-      // Play the selected move
-      result = await ns.go.makeMove(x, y);
-    }
-
-    await ns.sleep(100);
-  } while (result?.type !== "gameOver" && result?.type !== "pass");
-
-  // After the opponent passes, end the game by passing as well
-  await ns.go.passTurn();
-}
-
-/**
- * Choose one of the empty points on the board at random to play
- */
-const getRandomMove = (board, validMoves) => {
-  const moveOptions = [];
-  const size = board[0].length;
-
-  // Look through all the points on the board
-  for (let x = 0; x < size; x++) {
-    for (let y = 0; y < size; y++) {
-      // Make sure the point is a valid move
-      const isValidMove = validMoves[x][y];
-      // Leave some spaces to make it harder to capture our pieces
-      const isNotReservedSpace = x % 2 || y % 2;
-
-      if (isValidMove && isNotReservedSpace) {
-        moveOptions.push([x, y]);
-      }
-    }
-  }
-
-  // Choose one of the found moves at random
-  const randomIndex = Math.floor(Math.random() * moveOptions.length);
-  return moveOptions[randomIndex] ?? [];
-};
-
-/**
- * Choose a point connected to a friendly stone to play
- */
-const getGrowMove = (board, validMoves) => {
-  const moveOptions = [];
-  const size = board[0].length;
-
-  // Look through all the points on the board
-  for (let x = 0; x < size; x++) {
-    for (let y = 0; y < size; y++) {
-      // make sure the move is valid
-      const isValidMove = validMoves[x][y];
-      // Leave some open spaces to make it harder to capture our pieces
-      const isNotReservedSpace = x % 2 || y % 2;
-
-      // Make sure we are connected to a friendly piece
-      const neighbors = getNeighbors(board, x, y);
-      const hasFriendlyNeighbor = neighbors.includes("X");
-
-      if (isValidMove && isNotReservedSpace && hasFriendlyNeighbor) {
-        moveOptions.push([x, y]);
-      }
-    }
-  }
-
-  // Choose one of the found moves at random
-  const randomIndex = Math.floor(Math.random() * moveOptions.length);
-  return moveOptions[randomIndex] ?? [];
-};
-
-/**
- * Find all adjacent points in the four connected directions
- */
-const getNeighbors = (board, x, y) => {
-  const north = board[x + 1]?.[y];
-  const east = board[x][y + 1];
-  const south = board[x - 1]?.[y];
-  const west = board[x]?.[y - 1];
-
-  return [north, east, south, west];
-};

src/Go/ui/GoGameboardWrapper.tsx

@@ -20,6 +20,7 @@ import { GoSubnetSearch } from "./GoSubnetSearch";
 import { CorruptableText } from "../../ui/React/CorruptableText";
 import { makeAIMove, resetAI, resolveCurrentTurn } from "../boardAnalysis/goAI";
 import { GoScoreExplanation } from "./GoScoreExplanation";
+import { exceptionAlert } from "../../utils/helpers/exceptionAlert";
 
 interface GoGameboardWrapperProps {
   showInstructions: () => void;
@@ -63,7 +64,7 @@ export function GoGameboardWrapper({ showInstructions }: GoGameboardWrapperProps
 
   // Do not implement useCallback for this function without ensuring GoGameboard still rerenders for every move
   // Currently this function changing is what triggers a GoGameboard rerender, which is needed
-  async function clickHandler(x: number, y: number) {
+  function clickHandler(x: number, y: number) {
     if (showPriorMove) {
       SnackbarEvents.emit(
         `Currently showing a past board state. Please disable "Show previous move" to continue.`,
@@ -94,7 +95,7 @@ export function GoGameboardWrapper({ showInstructions }: GoGameboardWrapperProps
     const didUpdateBoard = makeMove(boardState, x, y, currentPlayer);
     if (didUpdateBoard) {
       rerender();
-      takeAiTurn(boardState);
+      takeAiTurn(boardState).catch((error) => exceptionAlert(error));
     }
   }
 
@@ -113,7 +114,7 @@ export function GoGameboardWrapper({ showInstructions }: GoGameboardWrapperProps
     }
 
     setTimeout(() => {
-      takeAiTurn(boardState);
+      takeAiTurn(boardState).catch((error) => exceptionAlert(error));
     }, 100);
   }
 

src/Netscript/ErrorMessages.ts

@@ -99,13 +99,13 @@ export function handleUnknownError(e: unknown, ws: WorkerScript | null = null, i
       Error has been logged to the console.\n\nType of error: ${typeof e}\nValue of error: ${e}`;
     e = ws ? basicErrorMessage(ws, msg, "UNKNOWN") : msg;
   }
-  dialogBoxCreate(initialText + e);
+  dialogBoxCreate(initialText + String(e));
 }
 
-/** Use this handler to handle the error when we call getSaveData function */
-export function handleGetSaveDataError(error: unknown) {
+/** Use this handler to handle the error when we call getSaveData function or getSaveInfo function */
+export function handleGetSaveDataInfoError(error: unknown, fromGetSaveInfo = false) {
   console.error(error);
-  let errorMessage = `Cannot get save data. Error: ${error}.`;
+  let errorMessage = `Cannot get save ${fromGetSaveInfo ? "info" : "data"}. Error: ${error}.`;
   if (error instanceof RangeError) {
     errorMessage += " This may be because the save data is too large.";
   }

src/Netscript/NetscriptHelpers.tsx

@@ -232,7 +232,7 @@ function spawnOptions(ctx: NetscriptContext, threadOrOption: unknown): CompleteS
 function mapToString(map: Map<unknown, unknown>): string {
   const formattedMap = [...map]
     .map((m) => {
-      return `${m[0]} => ${m[1]}`;
+      return `${String(m[0])} => ${String(m[1])}`;
     })
     .join("; ");
   return `< Map: ${formattedMap} >`;
@@ -245,7 +245,7 @@ function setToString(set: Set<unknown>): string {
 /** Convert multiple arguments for tprint or print into a single string. */
 function argsToString(args: unknown[]): string {
   // Reduce array of args into a single output string
-  return args.reduce((out, arg) => {
+  return args.reduce((out: string, arg) => {
     if (arg === null) {
       return (out += "null");
     }
@@ -264,12 +264,13 @@ function argsToString(args: unknown[]): string {
       return (out += setToString(nativeArg));
     }
     if (typeof nativeArg === "object") {
-      return (out += JSON.stringify(nativeArg, (_, value) => {
+      return (out += JSON.stringify(nativeArg, (_, value: unknown) => {
         /**
          * If the property is a promise, we will return a string that clearly states that it's a promise object, not a
          * normal object. If we don't do that, all promises will be serialized into "{}".
          */
         if (value instanceof Promise) {
+          // eslint-disable-next-line @typescript-eslint/no-base-to-string -- "[object Promise]" is exactly the string that we want.
           return value.toString();
         }
         if (value instanceof Map) {
@@ -282,8 +283,8 @@ function argsToString(args: unknown[]): string {
       }));
     }
 
-    return (out += `${nativeArg}`);
-  }, "") as string;
+    return (out += String(nativeArg));
+  }, "");
 }
 
 function validateHGWOptions(ctx: NetscriptContext, opts: unknown): CompleteHGWOptions {
@@ -296,6 +297,7 @@ function validateHGWOptions(ctx: NetscriptContext, opts: unknown): CompleteHGWOp
     return result;
   }
   if (typeof opts !== "object") {
+    // eslint-disable-next-line @typescript-eslint/no-base-to-string
     throw errorMessage(ctx, `BasicHGWOptions must be an object if specified, was ${opts}`);
   }
   // Safe assertion since threadOrOption type has been narrowed to a non-null object
@@ -723,7 +725,7 @@ function createPublicRunningScript(runningScript: RunningScript, workerScript?:
     args: runningScript.args.slice(),
     dynamicRamUsage: workerScript && roundToTwo(workerScript.dynamicRamUsage),
     filename: runningScript.filename,
-    logs: runningScript.logs.map((x) => "" + x),
+    logs: runningScript.logs.map((x) => String(x)),
     offlineExpGained: runningScript.offlineExpGained,
     offlineMoneyMade: runningScript.offlineMoneyMade,
     offlineRunningTime: runningScript.offlineRunningTime,
@@ -782,13 +784,21 @@ function validateBitNodeOptions(ctx: NetscriptContext, bitNodeOptions: unknown):
     return result;
   }
   if (typeof bitNodeOptions !== "object") {
+    // eslint-disable-next-line @typescript-eslint/no-base-to-string
     throw errorMessage(ctx, `bitNodeOptions must be an object if it's specified. It was ${bitNodeOptions}.`);
   }
   const options = bitNodeOptions as Unknownify<BitNodeOptions>;
   if (!(options.sourceFileOverrides instanceof Map)) {
     throw errorMessage(ctx, `sourceFileOverrides must be a Map.`);
   }
-  const validationResultForSourceFileOverrides = validateSourceFileOverrides(options.sourceFileOverrides, true);
+  const validationResultForSourceFileOverrides = validateSourceFileOverrides(
+    /**
+     * Cast the type from Map<any, any> to Map<number, number> to satisfy the lint rule. The validation logic in
+     * validateSourceFileOverrides will check the data.
+     */
+    options.sourceFileOverrides as Map<number, number>,
+    true,
+  );
   if (!validationResultForSourceFileOverrides.valid) {
     throw errorMessage(
       ctx,

src/NetscriptFunctions.ts

@@ -542,7 +542,7 @@ export const ns: InternalAPI<NSFull> = {
         return [] as string[];
       }
 
-      return runningScriptObj.logs.map((x) => "" + x);
+      return runningScriptObj.logs.map((x) => String(x));
     },
   tail:
     (ctx) =>
@@ -1870,7 +1870,7 @@ function getFunctionNames(obj: object, prefix: string): string[] {
     } else if (typeof value === "function") {
       functionNames.push(prefix + key);
     } else if (typeof value === "object") {
-      functionNames.push(...getFunctionNames(value, `${prefix}${key}.`));
+      functionNames.push(...getFunctionNames(value as object, `${prefix}${key}.`));
     }
   }
   return functionNames;

src/NetscriptFunctions/Singularity.ts

@@ -1,4 +1,4 @@
-import type { Singularity as ISingularity, Task as ITask } from "@nsdefs";
+import type { Singularity as ISingularity } from "@nsdefs";
 
 import { Player } from "@player";
 import { AugmentationName, CityName, FactionWorkType, GymType, LocationName, UniversityClassType } from "@enums";
@@ -1142,7 +1142,7 @@ export function NetscriptSingularity(): InternalAPI<ISingularity> {
         ? resolveScriptFilePath(helpers.string(ctx, "cbScript", _cbScript), ctx.workerScript.name)
         : false;
       if (cbScript === null) {
-        throw helpers.errorMessage(ctx, `Could not resolve file path: ${_cbScript}`);
+        throw helpers.errorMessage(ctx, `Could not resolve file path. callbackScript is null.`);
       }
       enterBitNode(true, Player.bitNodeN, nextBN, helpers.validateBitNodeOptions(ctx, _bitNodeOptions));
       if (cbScript) {
@@ -1159,7 +1159,7 @@ export function NetscriptSingularity(): InternalAPI<ISingularity> {
         ? resolveScriptFilePath(helpers.string(ctx, "cbScript", _cbScript), ctx.workerScript.name)
         : false;
       if (cbScript === null) {
-        throw helpers.errorMessage(ctx, `Could not resolve file path: ${_cbScript}`);
+        throw helpers.errorMessage(ctx, `Could not resolve file path. callbackScript is null.`);
       }
 
       const wd = GetServer(SpecialServers.WorldDaemon);
@@ -1194,7 +1194,7 @@ export function NetscriptSingularity(): InternalAPI<ISingularity> {
     getCurrentWork: (ctx) => () => {
       helpers.checkSingularityAccess(ctx);
       if (!Player.currentWork) return null;
-      return Player.currentWork.APICopy() as ITask;
+      return Player.currentWork.APICopy();
     },
     exportGame: (ctx) => () => {
       helpers.checkSingularityAccess(ctx);

src/NetscriptJSEvaluator.ts

@@ -30,7 +30,7 @@ function makeScriptBlob(code: string): Blob {
 // config object to provide a hook point.
 export const config = {
   doImport(url: ScriptURL): Promise<ScriptModule> {
-    return import(/*webpackIgnore:true*/ url);
+    return import(/*webpackIgnore:true*/ url) as Promise<ScriptModule>;
   },
 };
 

src/PersonObjects/Player/PlayerObjectGangMethods.ts

@@ -36,9 +36,9 @@ export function getGangFaction(this: PlayerObject): Faction {
   return fac;
 }
 
-export function getGangName(this: PlayerObject): string {
+export function getGangName(this: PlayerObject): FactionName | null {
   const gang = this.gang;
-  return gang ? gang.facName : "";
+  return gang ? gang.facName : null;
 }
 
 export function hasGangWith(this: PlayerObject, facName: FactionName): boolean {

src/PersonObjects/Player/PlayerObjectGeneralMethods.ts

@@ -302,7 +302,7 @@ export function applyForJob(
   }
 
   if (!company.hasPosition(pos)) {
-    console.error(`Company ${company.name} does not have position ${pos}. Player.applyToCompany() failed.`);
+    console.error(`Company ${company.name} does not have position ${pos.name}. Player.applyToCompany() failed.`);
     return null;
   }
 

src/Player.ts

@@ -11,7 +11,7 @@ export function setPlayer(playerObj: PlayerObject): void {
 }
 
 export function loadPlayer(saveString: string): PlayerObject {
-  const player = JSON.parse(saveString, Reviver);
+  const player = JSON.parse(saveString, Reviver) as PlayerObject;
   player.money = parseFloat(player.money + "");
   player.exploits = sanitizeExploits(player.exploits);
   return player;

src/RemoteFileAPI/MessageHandlers.ts

@@ -18,7 +18,7 @@ function error(errorMsg: string, { id }: RFAMessage): RFAMessage {
   return new RFAMessage({ error: errorMsg, id: id });
 }
 
-export const RFARequestHandler: Record<string, (message: RFAMessage) => void | RFAMessage> = {
+export const RFARequestHandler: Record<string, (message: RFAMessage) => RFAMessage> = {
   pushFile: function (msg: RFAMessage): RFAMessage {
     if (!isFileData(msg.params)) return error("Misses parameters", msg);
 

src/RemoteFileAPI/Remote.ts

@@ -40,7 +40,7 @@ export class Remote {
 }
 
 function handleMessageEvent(this: WebSocket, e: MessageEvent): void {
-  const msg: RFAMessage = JSON.parse(e.data);
+  const msg = JSON.parse(e.data as string) as RFAMessage;
 
   if (!msg.method || !RFARequestHandler[msg.method]) {
     const response = new RFAMessage({ error: "Unknown message received", id: msg.id });

src/SaveObject.ts

@@ -44,7 +44,7 @@ import { isBinaryFormat } from "../electron/saveDataBinaryFormat";
 import { downloadContentAsFile } from "./utils/FileUtils";
 import { showAPIBreaks } from "./utils/APIBreaks/APIBreak";
 import { breakInfos261 } from "./utils/APIBreaks/2.6.1";
-import { handleGetSaveDataError } from "./Netscript/ErrorMessages";
+import { handleGetSaveDataInfoError } from "./Netscript/ErrorMessages";
 
 /* SaveObject.js
  *  Defines the object used to save/load games
@@ -130,7 +130,7 @@ class BitburnerSaveObject {
     try {
       saveData = await this.getSaveData();
     } catch (error) {
-      handleGetSaveDataError(error);
+      handleGetSaveDataInfoError(error);
       return;
     }
     try {
@@ -170,7 +170,7 @@ class BitburnerSaveObject {
     try {
       saveData = await this.getSaveData();
     } catch (error) {
-      handleGetSaveDataError(error);
+      handleGetSaveDataInfoError(error);
       return;
     }
     const filename = this.getSaveFileName();
@@ -698,9 +698,12 @@ function evaluateVersionCompatibility(ver: string | number): void {
               } catch (e) {
                 anyExportsFailed = true;
                 // We just need the text error, not a full stack trace
-                console.error(`Failed to load export of material ${material.name} (${division.name} ${warehouse.city})
+                console.error(
+                  `Failed to load export of material ${material.name} (${division.name} ${warehouse.city})
 Original export details: ${JSON.stringify(originalExport)}
-Error: ${e}`);
+Error: ${e}`,
+                  e,
+                );
               }
             }
           }
@@ -805,16 +808,16 @@ async function loadGame(saveData: SaveData): Promise<boolean> {
   if (Object.hasOwn(saveObj, "LastExportBonus")) {
     try {
       ExportBonus.setLastExportBonus(JSON.parse(saveObj.LastExportBonus));
-    } catch (err) {
+    } catch (error) {
       ExportBonus.setLastExportBonus(new Date().getTime());
-      console.error("ERROR: Failed to parse last export bonus Settings " + err);
+      console.error(`ERROR: Failed to parse last export bonus setting. Error: ${error}.`, error);
     }
   }
   if (Player.gang && Object.hasOwn(saveObj, "AllGangsSave")) {
     try {
       loadAllGangs(saveObj.AllGangsSave);
-    } catch (e) {
-      console.error("ERROR: Failed to parse AllGangsSave: " + e);
+    } catch (error) {
+      console.error(`ERROR: Failed to parse AllGangsSave. Error: ${error}.`, error);
     }
   }
   if (Object.hasOwn(saveObj, "VersionSave")) {

src/Script/RunningScript.ts

@@ -106,7 +106,7 @@ export class RunningScript {
 
     let logEntry = txt;
     if (Settings.TimestampsFormat && typeof txt === "string") {
-      logEntry = "[" + formatTime(Settings.TimestampsFormat) + "] " + logEntry;
+      logEntry = `[${formatTime(Settings.TimestampsFormat)}] ${txt}`;
     }
 
     this.logs.push(logEntry);

src/ScriptEditor/ScriptEditor.ts

@@ -14,6 +14,7 @@ import { NetscriptExtra } from "../NetscriptFunctions/Extra";
 import * as enums from "../Enums";
 import { ns } from "../NetscriptFunctions";
 import { isLegacyScript } from "../Paths/ScriptFilePath";
+import { exceptionAlert } from "../utils/helpers/exceptionAlert";
 
 /** Event emitter used for tracking when changes have been made to a content file. */
 export const fileEditEvents = new EventEmitter<[hostname: string, filename: ContentFilePath]>();
@@ -36,7 +37,9 @@ export class ScriptEditor {
       for (const [apiKey, apiValue] of Object.entries(apiLayer)) {
         if (apiLayer === api && apiKey in hiddenAPI) continue;
         apiKeys.push(apiKey);
-        if (typeof apiValue === "object") populate(apiValue);
+        if (typeof apiValue === "object") {
+          populate(apiValue as object);
+        }
       }
     }
     populate();
@@ -44,23 +47,25 @@ export class ScriptEditor {
     (async function () {
       // We have to improve the default js language otherwise theme sucks
       const jsLanguage = monaco.languages.getLanguages().find((l) => l.id === "javascript");
-      // Unsupported function is not exposed in monaco public API.
-      const l = await (jsLanguage as any).loader();
+      if (!jsLanguage) {
+        return;
+      }
+      const loader = await jsLanguage.loader();
       // replaced the bare tokens with regexes surrounded by \b, e.g. \b{token}\b which matches a word-break on either side
       // this prevents the highlighter from highlighting pieces of variables that start with a reserved token name
-      l.language.tokenizer.root.unshift([new RegExp("\\bns\\b"), { token: "ns" }]);
+      loader.language.tokenizer.root.unshift([new RegExp("\\bns\\b"), { token: "ns" }]);
       for (const symbol of apiKeys)
-        l.language.tokenizer.root.unshift([new RegExp(`\\b${symbol}\\b`), { token: "netscriptfunction" }]);
+        loader.language.tokenizer.root.unshift([new RegExp(`\\b${symbol}\\b`), { token: "netscriptfunction" }]);
       const otherKeywords = ["let", "const", "var", "function", "arguments"];
       const otherKeyvars = ["true", "false", "null", "undefined"];
       otherKeywords.forEach((k) =>
-        l.language.tokenizer.root.unshift([new RegExp(`\\b${k}\\b`), { token: "otherkeywords" }]),
+        loader.language.tokenizer.root.unshift([new RegExp(`\\b${k}\\b`), { token: "otherkeywords" }]),
       );
       otherKeyvars.forEach((k) =>
-        l.language.tokenizer.root.unshift([new RegExp(`\\b${k}\\b`), { token: "otherkeyvars" }]),
+        loader.language.tokenizer.root.unshift([new RegExp(`\\b${k}\\b`), { token: "otherkeyvars" }]),
       );
-      l.language.tokenizer.root.unshift([new RegExp("\\bthis\\b"), { token: "this" }]);
-    })();
+      loader.language.tokenizer.root.unshift([new RegExp("\\bthis\\b"), { token: "this" }]);
+    })().catch((e) => exceptionAlert(e));
 
     // Add ts definitions for API
     const source = netscriptDefinitions.replace(/export /g, "");
@@ -112,16 +117,20 @@ export class ScriptEditor {
       // returns a reject promise if the language worker is not loaded yet, so we wait to
       // call it until the language gets loaded.
       const languageWorker = new Promise<(...uris: monaco.Uri[]) => unknown>((resolve) =>
-        monaco.languages.onLanguage(language, () => getLanguageWorker().then(resolve)),
+        monaco.languages.onLanguage(language, () => {
+          getLanguageWorker()
+            .then(resolve)
+            .catch((error) => exceptionAlert(error));
+        }),
       );
-      // Whenever a model is created, arange for it synced to the language server.
+      // Whenever a model is created, arrange for it to be synced to the language server.
       monaco.editor.onDidCreateModel((model) => {
         if (language === "typescript" && isLegacyScript(model.uri.path)) {
           // Don't sync legacy scripts to typescript worker.
           return;
         }
         if (["javascript", "typescript"].includes(model.getLanguageId())) {
-          languageWorker.then((cb) => cb(model.uri));
+          languageWorker.then((resolve) => resolve(model.uri)).catch((error) => exceptionAlert(error));
         }
       });
     }

src/ScriptEditor/ui/ScriptEditorRoot.tsx

@@ -33,6 +33,7 @@ import { useCallback } from "react";
 import { type AST, getFileType, parseAST } from "../../utils/ScriptTransformer";
 import { RamCalculationErrorCode } from "../../Script/RamCalculationErrorCodes";
 import { hasScriptExtension, isLegacyScript } from "../../Paths/ScriptFilePath";
+import { exceptionAlert } from "../../utils/helpers/exceptionAlert";
 
 interface IProps {
   // Map of filename -> code
@@ -105,7 +106,9 @@ function Root(props: IProps): React.ReactElement {
     const server = GetServer(currentScript.hostname);
     if (server === null) throw new Error("Server should not be null but it is.");
     server.writeToContentFile(currentScript.path, currentScript.code);
-    if (Settings.SaveGameOnFileSave) saveObject.saveGame();
+    if (Settings.SaveGameOnFileSave) {
+      saveObject.saveGame().catch((error) => exceptionAlert(error));
+    }
     rerender();
   }, [rerender]);
 
@@ -285,7 +288,9 @@ function Root(props: IProps): React.ReactElement {
     if (!server) throw new Error("Server should not be null but it is.");
     // This server helper already handles overwriting, etc.
     server.writeToContentFile(scriptToSave.path, scriptToSave.code);
-    if (Settings.SaveGameOnFileSave) saveObject.saveGame();
+    if (Settings.SaveGameOnFileSave) {
+      saveObject.saveGame().catch((error) => exceptionAlert(error));
+    }
   }
 
   function currentTabIndex(): number | undefined {

src/ScriptEditor/ui/Toolbar.tsx

@@ -35,7 +35,10 @@ export function Toolbar({ editor, onSave }: IProps) {
   const [optionsOpen, { on: openOptions, off: closeOptions }] = useBoolean(false);
 
   function beautify(): void {
-    editor?.getAction("editor.action.formatDocument")?.run();
+    editor
+      ?.getAction("editor.action.formatDocument")
+      ?.run()
+      .catch((error) => console.error(error));
   }
 
   const { ram, ramEntries, isUpdatingRAM, options, saveOptions } = useScriptEditorContext();

src/ScriptEditor/ui/themes.ts

@@ -218,7 +218,7 @@ export function makeTheme(theme: IScriptEditorTheme): editor.IStandaloneThemeDat
   return { base: theme.base, inherit: theme.inherit, rules: themeRules, colors: themeColors };
 }
 
-export async function loadThemes(defineTheme: DefineThemeFn): Promise<void> {
+export function loadThemes(defineTheme: DefineThemeFn): void {
   defineTheme("monokai", {
     base: "vs-dark",
     inherit: true,

src/Settings/Settings.ts

@@ -157,7 +157,12 @@ export const Settings = {
   disableSuffixes: false,
 
   load(saveString: string) {
-    const save = JSON.parse(saveString);
+    const save = JSON.parse(saveString) as {
+      theme?: typeof Settings.theme;
+      styles?: typeof Settings.styles;
+      overview?: typeof Settings.overview;
+      EditorTheme?: typeof Settings.EditorTheme;
+    };
     save.theme && Object.assign(Settings.theme, save.theme);
     save.styles && Object.assign(Settings.styles, save.styles);
     save.overview && Object.assign(Settings.overview, save.overview);

src/StockMarket/BuyingAndSelling.tsx

@@ -50,7 +50,7 @@ export function buyStock(
   }
   if (stock == null || isNaN(shares)) {
     if (ctx) {
-      helpers.log(ctx, () => `Invalid arguments: stock='${stock}' shares='${shares}'`);
+      helpers.log(ctx, () => `Invalid arguments: stock='${stock?.name}' shares='${shares}'`);
     } else if (opts.suppressDialog !== true) {
       dialogBoxCreate("Failed to buy stock. This may be a bug, contact developer");
     }
@@ -145,7 +145,7 @@ export function sellStock(
   // Sanitize/Validate arguments
   if (stock == null || shares < 0 || isNaN(shares)) {
     if (ctx) {
-      helpers.log(ctx, () => `Invalid arguments: stock='${stock}' shares='${shares}'`);
+      helpers.log(ctx, () => `Invalid arguments: stock='${stock?.name}' shares='${shares}'`);
     } else if (opts.suppressDialog !== true) {
       dialogBoxCreate(
         "Failed to sell stock. This is probably due to an invalid quantity. Otherwise, this may be a bug, contact developer",
@@ -225,7 +225,7 @@ export function shortStock(
   }
   if (stock == null || isNaN(shares)) {
     if (ctx) {
-      helpers.log(ctx, () => `Invalid arguments: stock='${stock}' shares='${shares}'`);
+      helpers.log(ctx, () => `Invalid arguments: stock='${stock?.name}' shares='${shares}'`);
     } else if (opts.suppressDialog !== true) {
       dialogBoxCreate(
         "Failed to initiate a short position in a stock. This is probably " +
@@ -321,7 +321,7 @@ export function sellShort(
 ): boolean {
   if (stock == null || isNaN(shares) || shares < 0) {
     if (ctx) {
-      helpers.log(ctx, () => `Invalid arguments: stock='${stock}' shares='${shares}'`);
+      helpers.log(ctx, () => `Invalid arguments: stock='${stock?.name}' shares='${shares}'`);
     } else if (!opts.suppressDialog) {
       dialogBoxCreate(
         "Failed to sell a short position in a stock. This is probably " +

src/Terminal/commands/download.ts

@@ -20,7 +20,13 @@ export function exportScripts(pattern: string, server: BaseServer, currDir = roo
   const filename = `bitburner${
     hasScriptExtension(pattern) ? "Scripts" : pattern.endsWith(".txt") ? "Texts" : "Files"
   }.zip`;
-  zip.generateAsync({ type: "blob" }).then((content: Blob) => downloadContentAsFile(content, filename));
+  zip
+    .generateAsync({ type: "blob" })
+    .then((content: Blob) => downloadContentAsFile(content, filename))
+    .catch((error) => {
+      console.error(error);
+      Terminal.error(`Cannot compress scripts with pattern ${pattern} on ${server.hostname}. Error: ${error}`);
+    });
 }
 
 export function download(args: (string | number | boolean)[], server: BaseServer): void {
@@ -33,9 +39,10 @@ export function download(args: (string | number | boolean)[], server: BaseServer
     try {
       exportScripts(pattern, server, Terminal.currDir);
       return;
-    } catch (e: any) {
-      const msg = String(e?.message ?? e);
-      return Terminal.error(msg);
+    } catch (error) {
+      console.error(error);
+      Terminal.error(`Cannot export scripts with pattern ${pattern} on ${server.hostname}. Error: ${error}`);
+      return;
     }
   }
   const path = Terminal.getFilepath(pattern);

src/Terminal/commands/grep.ts

@@ -383,13 +383,19 @@ function writeToTerminal(
   if (options.isVerbose) Terminal.print(verboseInfo);
 }
 
-function checkOutFile(outFileStr: string, options: Options, server: BaseServer): ContentFilePath | void {
-  if (!outFileStr) return;
+function checkOutFile(outFileStr: string, options: Options, server: BaseServer): ContentFilePath | null {
+  if (!outFileStr) {
+    return null;
+  }
   const outFilePath = Terminal.getFilepath(outFileStr);
   if (!outFilePath || !hasTextExtension(outFilePath)) {
-    return Terminal.error(ERR.badOutFile(outFileStr));
+    Terminal.error(ERR.badOutFile(outFileStr));
+    return null;
+  }
+  if (!options.isOverWrite && server.textFiles.has(outFilePath)) {
+    Terminal.error(ERR.outFileExists(outFileStr));
+    return null;
   }
-  if (!options.isOverWrite && server.textFiles.has(outFilePath)) return Terminal.error(ERR.outFileExists(outFileStr));
   return outFilePath;
 }
 
@@ -433,7 +439,8 @@ export function grep(args: (string | number | boolean)[], server: BaseServer): v
     if (options.isPipeIn) files.length = 0;
     if (!options.isQuiet) writeToTerminal(prettyResult, options, results, files, pattern);
     if (params.outfile && outFilePath) server.writeToContentFile(outFilePath, rawResult.join("\n"));
-  } catch (e) {
-    Terminal.error("grep processing error: " + e);
+  } catch (error) {
+    console.error(error);
+    Terminal.error(`grep processing error: ${error}`);
   }
 }

src/Terminal/commands/kill.ts

@@ -44,7 +44,8 @@ export function kill(args: (string | number | boolean)[], server: BaseServer): v
     if (killed >= 5) {
       Terminal.print(`... killed ${killed} instances total`);
     }
-  } catch (e) {
-    Terminal.error(e + "");
+  } catch (error) {
+    console.error(error);
+    Terminal.error(String(error));
   }
 }

src/Terminal/commands/mem.ts

@@ -43,7 +43,8 @@ export function mem(args: (string | number | boolean)[], server: BaseServer): vo
       // Let's warn the user that he might need to save his script again to generate the detailed entries
       Terminal.warn("You might have to open & save this script to see the detailed RAM usage information.");
     }
-  } catch (e) {
-    Terminal.error(e + "");
+  } catch (error) {
+    console.error(error);
+    Terminal.error(String(error));
   }
 }

src/Terminal/commands/run.ts

@@ -19,7 +19,10 @@ export function run(args: (string | number | boolean)[], server: BaseServer): vo
   if (hasScriptExtension(path)) {
     return runScript(path, args, server);
   } else if (hasContractExtension(path)) {
-    Terminal.runContract(path);
+    Terminal.runContract(path).catch((error) => {
+      console.error(error);
+      Terminal.error(`Cannot run contract ${path} on ${server.hostname}. Error: ${error}.`);
+    });
     return;
   } else if (hasProgramExtension(path)) {
     return runProgram(path, args, server);

src/Terminal/commands/runScript.ts

@@ -25,7 +25,7 @@ export function runScript(path: ScriptFilePath, commandArgs: (string | number |
       argv: commandArgs,
     });
   } catch (error) {
-    Terminal.error(`Invalid arguments. ${String(error)}.`);
+    Terminal.error(`Invalid arguments. ${error}.`);
     return;
   }
   const tailFlag = flags["--tail"] === true;

src/Terminal/commands/tail.ts

@@ -32,7 +32,8 @@ export function tail(commandArray: (string | number | boolean)[], server: BaseSe
       }
       LogBoxEvents.emit(runningScript);
     }
-  } catch (e) {
-    Terminal.error(e + "");
+  } catch (error) {
+    console.error(error);
+    Terminal.error(String(error));
   }
 }

src/db.ts

@@ -37,7 +37,7 @@ function getDB(): Promise<IDBObjectStore> {
 export function load(): Promise<SaveData> {
   return getDB().then((db) => {
     return new Promise<SaveData>((resolve, reject) => {
-      const request: IDBRequest<SaveData> = db.get("save");
+      const request = db.get("save") as IDBRequest<SaveData>;
       request.onerror = function (this: IDBRequest<SaveData>) {
         reject(new Error("Error in Database request to get save data", { cause: this.error }));
       };

src/engine.tsx

@@ -237,7 +237,7 @@ const Engine: {
         Engine.Counters.autoSaveCounter = 60 * 5; // Let's check back in a bit
       } else {
         Engine.Counters.autoSaveCounter = Settings.AutosaveInterval * 5;
-        saveObject.saveGame(!Settings.SuppressSavedGameToast);
+        saveObject.saveGame(!Settings.SuppressSavedGameToast).catch((error) => console.error(error));
       }
     }
   },

src/ui/GameRoot.tsx

@@ -75,6 +75,7 @@ import { HistoryProvider } from "./React/Documentation";
 import { GoRoot } from "../Go/ui/GoRoot";
 import { Settings } from "../Settings/Settings";
 import { isBitNodeFinished } from "../BitNode/BitNodeUtils";
+import { exceptionAlert } from "../utils/helpers/exceptionAlert";
 
 const htmlLocation = location;
 
@@ -154,8 +155,14 @@ export function GameRoot(): React.ReactElement {
     for (const server of GetAllServers()) {
       server.runningScriptMap.clear();
     }
-    saveObject.saveGame();
-    setTimeout(() => htmlLocation.reload(), 2000);
+    saveObject
+      .saveGame()
+      .then(() => {
+        setTimeout(() => htmlLocation.reload(), 2000);
+      })
+      .catch((error) => {
+        exceptionAlert(error);
+      });
   }
 
   function attemptedForbiddenRouting(name: string) {
@@ -333,11 +340,13 @@ export function GameRoot(): React.ReactElement {
     case Page.Options: {
       mainPage = (
         <GameOptionsRoot
-          save={() => saveObject.saveGame()}
+          save={() => {
+            saveObject.saveGame().catch((error) => exceptionAlert(error));
+          }}
           export={() => {
             // Apply the export bonus before saving the game
             onExport();
-            saveObject.exportGame();
+            saveObject.exportGame().catch((error) => exceptionAlert(error));
           }}
           forceKill={killAllScripts}
           softReset={softReset}
@@ -356,7 +365,7 @@ export function GameRoot(): React.ReactElement {
           exportGameFn={() => {
             // Apply the export bonus before saving the game
             onExport();
-            saveObject.exportGame();
+            saveObject.exportGame().catch((error) => exceptionAlert(error));
           }}
           installAugmentationsFn={() => {
             installAugmentations();
@@ -395,7 +404,9 @@ export function GameRoot(): React.ReactElement {
                   !ITutorial.isRunning ? (
                     <CharacterOverview
                       parentOpen={parentOpen}
-                      save={() => saveObject.saveGame()}
+                      save={() => {
+                        saveObject.saveGame().catch((error) => exceptionAlert(error));
+                      }}
                       killScripts={killAllScripts}
                     />
                   ) : (

src/ui/React/ImportSave/ImportSave.tsx

@@ -38,7 +38,7 @@ import { useBoolean } from "../hooks";
 
 import { ComparisonIcon } from "./ComparisonIcon";
 import { SaveData } from "../../../types";
-import { handleGetSaveDataError } from "../../../Netscript/ErrorMessages";
+import { handleGetSaveDataInfoError } from "../../../Netscript/ErrorMessages";
 
 const useStyles = makeStyles()((theme: Theme) => ({
   root: {
@@ -140,7 +140,7 @@ export const ImportSave = (props: { saveData: SaveData; automatic: boolean }): J
         // We cannot show dialog box in this screen (due to "withPopups = false"), so we will try showing it with a
         // delay. 1 second is usually enough to go back to other normal screens that allow showing popups.
         setTimeout(() => {
-          handleGetSaveDataError(error);
+          handleGetSaveDataInfoError(error);
         }, 1000);
       });
     }

src/utils/EventEmitter.ts

@@ -1,8 +1,6 @@
 /** Generic Event Emitter class following a subscribe/publish paradigm. */
 export class EventEmitter<T extends any[]> {
-  private subscribers: Set<(...args: [...T]) => void | undefined> = new Set();
-
-  constructor() {}
+  private subscribers: Set<(...args: [...T]) => void> = new Set();
 
   subscribe(s: (...args: [...T]) => void): () => void {
     this.subscribers.add(s);

src/utils/v2APIBreak.ts

@@ -239,7 +239,7 @@ export const v2APIBreak = () => {
   for (const server of GetAllServers()) {
     server.runningScriptMap = new Map();
   }
-  saveObject.exportGame();
+  saveObject.exportGame().catch((e) => console.error(e));
 };
 
 const formatOffenders = (offenders: IFileLine[]): string => {