# JavaScript Development Guidelines

> Objective: Define standards for modern, maintainable, and performant JavaScript across browser and server environments, covering syntax, modules, async patterns, error handling, security, and tooling.

::: tip Source File
View the full rule: [`.agent/rules/javascript.md`](https://github.com/snowdreamtech/template/blob/main/.agent/rules/javascript.md)
:::

## Sections

- 1. Syntax & Language Features
- 1. Modules & Imports
- 1. Async Programming
- 1. Error Handling
- 1. Security, Code Quality & Tooling
