imechZhangLY

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.

Element

Box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
elem.clientLeft, elem.clientTop, elem.clientWidth, elem.clientHeight
elem.getClientRects(), elem.getBoundingClientRect()

	const fs = require('fs')
	const path = require('path')

	// absolute paths to all symlinked modules inside `nodeModulesPath`
	// adapted from https://github.com/webpack/webpack/issues/811#issuecomment-405199263
	module.exports = function findLinkedModules(nodeModulesPath) {
	const modules = []

	fs.readdirSync(nodeModulesPath).forEach(dirname => {
	const modulePath = path.resolve(nodeModulesPath, dirname)