> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usebruno.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Scripting

Bruno allows you to write JavaScript code before sending a request (Pre-request) and after receiving a response (Post-response). Use scripts to generate dynamic data, manipulate requests, parse responses, and set variables.

* [Request Methods](/testing/script/javascript-reference#request)
* [Response Methods](/testing/script/javascript-reference#response)
* [Bruno Utilities](/testing/script/javascript-reference/#environments)

<img src="https://mintcdn.com/bruno-a6972042/bKrHa_JvyAqCslj1/images/screenshots/script/scripting.webp?fit=max&auto=format&n=bKrHa_JvyAqCslj1&q=85&s=425fcc29d0d68635f47de5a2798c3212" alt="bru lang sample" width="2472" height="924" data-path="images/screenshots/script/scripting.webp" />