Learn JAVASCRIPT with Real Code Examples

Minify and bundle JS for production

Debounce or throttle frequent events

Optimize DOM access and manipulation

Use requestAnimationFrame for animations

Avoid blocking the main thread with heavy computations

Prevent XSS by sanitizing user inputs

Avoid eval() and dynamic code execution

Use HTTPS and secure cookies

Validate server-side data

Follow Content Security Policy (CSP) guidelines

Use console and dev tools for debugging

Profile performance in browser

Monitor server-side metrics with logging

Track errors with Sentry or similar tools

Audit code quality and maintainability

Lint code consistently

Use type checking (TypeScript optional)

Write unit and integration tests

Follow coding standards and patterns

Document functions and modules clearly