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.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
Below are many examples of function hoisting behavior in JavaScript. Ones marked as works successfuly print 'hi!' without errors.
To play around with these examples (recommended) clone them with git and execute them with e.g. node a.js
(I may be using incorrect terms below, please forgive me)
| // Here’s a 100% deterministic alternative to `Math.random`. Google’s V8 and | |
| // Octane benchmark suites use this to ensure predictable results. | |
| Math.random = (function() { | |
| var seed = 0x2F6E2B1; | |
| return function() { | |
| // Robert Jenkins’ 32 bit integer hash function | |
| seed = ((seed + 0x7ED55D16) + (seed << 12)) & 0xFFFFFFFF; | |
| seed = ((seed ^ 0xC761C23C) ^ (seed >>> 19)) & 0xFFFFFFFF; | |
| seed = ((seed + 0x165667B1) + (seed << 5)) & 0xFFFFFFFF; |
Locate the section for your github remote in the .git/config file. It looks like this:
[remote "origin"]
fetch = +refs/heads/*:refs/remotes/origin/*
url = [email protected]:joyent/node.git
Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:
| ּ_בּ | |
| בּ_בּ | |
| טּ_טּ | |
| כּ‗כּ | |
| לּ_לּ | |
| מּ_מּ | |
| סּ_סּ | |
| תּ_תּ | |
| ٩(×̯×)۶ | |
| ٩(̾●̮̮̃̾•̃̾)۶ |