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@myshov
myshov / function_invocation.js
Last active January 21, 2024 15:14
11 Ways to Invoke a Function
console.log(1);
(_ => console.log(2))();
eval('console.log(3);');
console.log.call(null, 4);
console.log.apply(null, [5]);
new Function('console.log(6)')();
Reflect.apply(console.log, null, [7])
Reflect.construct(function(){console.log(8)}, []);
Function.prototype.apply.call(console.log, null, [9]);
Function.prototype.call.call(console.log, null, 10);
@paulirish
paulirish / what-forces-layout.md
Last active April 30, 2024 17:56
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
@ericelliott
ericelliott / essential-javascript-links.md
Last active April 22, 2024 10:15
Essential JavaScript Links
@tvandervossen
tvandervossen / gist:1231476
Created September 21, 2011 07:33
Mobile Safari viewport sizes on iOS 4.3 and 5
iPad
1024 × 690 In landscape on iOS 4.3
1024 × 672 In landscape on iOS 5
768 × 946 In portrait on iOS 4.3
768 × 928 In portrait on iOS 5
1024 × 660 Always showing bookmarks bar in landscape on iOS 4.3
1024 × 644 Always showing bookmarks bar in landscape on iOS 5
768 × 916 Always showing bookmarks bar in portrait on iOS 4.3