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
| 'use strict'; | |
| var Octokat = require('octokat'); | |
| var extend = require('lodash/object/assign'); | |
| var defaults = { | |
| branchName: 'master', | |
| token: '', | |
| username: '', | |
| reponame: '' |
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)
To remove a submodule you need to:
| { | |
| "nodes": [ | |
| {"name": "d3"}, | |
| {"name": "d3.svg"}, | |
| {"name": "d3.svg.area"}, | |
| {"name": "d3.svg.line"}, | |
| {"name": "d3.scale"}, | |
| {"name": "d3.scale.linear"}, | |
| {"name": "d3.scale.ordinal"} | |
| ], |
| sepalLength | sepalWidth | petalLength | petalWidth | species | |
|---|---|---|---|---|---|
| 5.1 | 3.5 | 1.4 | 0.2 | setosa | |
| 4.9 | 3.0 | 1.4 | 0.2 | setosa | |
| 4.7 | 3.2 | 1.3 | 0.2 | setosa | |
| 4.6 | 3.1 | 1.5 | 0.2 | setosa | |
| 5.0 | 3.6 | 1.4 | 0.2 | setosa | |
| 5.4 | 3.9 | 1.7 | 0.4 | setosa | |
| 4.6 | 3.4 | 1.4 | 0.3 | setosa | |
| 5.0 | 3.4 | 1.5 | 0.2 | setosa | |
| 4.4 | 2.9 | 1.4 | 0.2 | setosa |
A map of the sky that uses an azimuthal equidistant projection with star data. Longitudes and latitudes for the geo projection are obtained from declination and right ascension respectively (longitude is also inverted, because, unlike the earth globe, the celestial sphere is seen from the inside).
The boreal (northern) sky is shown at left, while the austral (southern) at right. Because right ascension is given in hours, both maps are divided in 24 slices. A circle is shown every 10 degrees of declination.
Star size indicates magnitude. Bigger circles depict brighter stars.
| license: gpl-3.0 |
| // | |
| // returns a list of all elements under the cursor | |
| // | |
| function elementsFromPoint(x,y) { | |
| var elements = [], previousPointerEvents = [], current, i, d; | |
| // get all elements via elementFromPoint, and remove them from hit-testing in order | |
| while ((current = document.elementFromPoint(x,y)) && elements.indexOf(current)===-1 && current != null) { | |
| // push the element and its current style |
| (function() { | |
| /* == GLOBAL DECLERATIONS == */ | |
| TouchMouseEvent = { | |
| DOWN: "touchmousedown", | |
| UP: "touchmouseup", | |
| MOVE: "touchmousemove" | |
| } | |
| /* == EVENT LISTENERS == */ |
