# Parameters and Return Values

Parameters let a function take in different values each time you call it, and return hands a result back to the code that called it.

![Cheat sheet: Parameters and Return Values](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/10/c2fb4b2862694faabff64ce2936bd10d.webp)

- Category: JavaScript
- Level: Novice
- Tags: Argument (javascript), JavaScript, Parameter (javascript), Return Value (javascript), undefined
- Updated: November 1, 2026

Source: https://www.ask-codey.com/cheat-sheets/javascript-functions-parameters-and-return-cheat-sheet