bitburner-src/markdown/bitburner.hacknet.hashcost.md

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[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [Hacknet](./bitburner.hacknet.md) &gt; [hashCost](./bitburner.hacknet.hashcost.md)
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## Hacknet.hashCost() method
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Get the cost of a hash upgrade.
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<b>Signature:</b>
```typescript
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hashCost(upgName: string): number;
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```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
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| upgName | string | Name of the upgrade of Hacknet Node. |
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<b>Returns:</b>
number
Number of hashes required for the specified upgrade.
## Remarks
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RAM cost: 0 GB
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This function is only applicable for Hacknet Servers (the upgraded version of a Hacknet Node).
Returns the number of hashes required for the specified upgrade. The name of the upgrade must be an exact match.
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## Example 1
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```ts
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// NS1:
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var upgradeName = "Sell for Corporation Funds";
if (hacknet.numHashes() > hacknet.hashCost(upgradeName)) {
hacknet.spendHashes(upgName);
}
```
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## Example 2
```ts
// NS2:
const upgradeName = "Sell for Corporation Funds";
if (ns.hacknet.numHashes() > ns.hacknet.hashCost(upgradeName)) {
ns.hacknet.spendHashes(upgName);
}
```