5 Powerful JavaScript Performance Hacks #devtools99 #javascript #coding #programming #webdevelopment

5 Powerful JavaScript Performance Hacks #devtools99 #javascript #coding #programming #webdevelopment

5 Powerful JavaScript Performance Hacks

Minimize DOM Access
Accessing the DOM frequently can slow down your application since it's an expensive operation. To boost performance, store references to DOM elements in variables and reuse them instead of querying the DOM multiple times.

Use requestAnimationFrame for Animations
When working with animations, opt for `requestAnimationFrame` instead of `setTimeout` or `setInterval`. This method ensures that animations are synchronized with the browser's refresh rate, leading to smoother visuals and optimized performance.

Debounce or Throttle User Input
When dealing with events like scrolling, resizing, or typing, use debouncing or throttling techniques. These methods limit the frequency of function executions, reducing the browser's workload and improving performance by minimizing the number of event calls.

Use for Loops Instead of Higher-Order Functions
While higher-order functions like `map`, `filter`, or `forEach` are more expressive, traditional `for` loops generally provide better performance when processing large datasets. Consider using them in performance-critical sections of your code.

Defer or Async Your Scripts
By using `defer` or `async` attributes in your script tags, you prevent JavaScript from blocking the page load. This allows the HTML to load without interruption, improving the overall speed and responsiveness of your site.

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