JavaScript Formatter

Beautify and format JavaScript code with customizable indentation and styling

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Formatting Options

JavaScript Formatting Guidelines

Indentation & Spacing

  • Use consistent indentation (2 or 4 spaces)
  • Add spaces around operators
  • Space after keywords (if, for, while)
  • No trailing whitespace

Code Structure

  • One statement per line
  • Use semicolons consistently
  • Proper brace placement
  • Meaningful variable names

Comments & Documentation

  • Use JSDoc for function documentation
  • Inline comments for complex logic
  • Remove commented-out code
  • Keep comments up to date

JavaScript Tools & Best Practices

Linting

Use ESLint or JSHint to catch errors and enforce coding standards.

Minification

Minify JavaScript for production to reduce file size and improve performance.

Error Handling

Use try-catch blocks and proper error handling for robust applications.

Modern Features

Use ES6+ features like arrow functions, const/let, and template literals.