[Home](./index.md) > [bitburner](./bitburner.md) > [NetscriptPort](./bitburner.netscriptport.md) > [peek](./bitburner.netscriptport.peek.md) ## NetscriptPort.peek() method Retrieve the first element from the port without removing it. Signature: ```typescript peek(): string | number; ``` Returns: string \| number the data read ## Remarks RAM cost: 0 GB This function is used to peek at the data from a port. It returns the first element in the specified port without removing that element. If the port is empty, the string “NULL PORT DATA” will be returned.