hjzheng

function addComments(arg, name) {
  // 当参数前的注释不存在的情况, 加入 webpackChunkName 注释
  if (!arg.leadingComments) {
    arg.leadingComments = [
      {
        type: 'CommentBlock',
        value: ` webpackChunkName: '${name}' `,
      },
    ]
  }

EvanAgee

if (!("classList" in SVGElement.prototype)) {
  Object.defineProperty(SVGElement.prototype, "classList", {
    get() {
      return {
        contains: className => {
          return this.className.baseVal.split(" ").indexOf(className) !== -1;
        },
        add: className => {
          return this.setAttribute('class', this.getAttribute('class') + ' ' + className);
        },

filip1

Date.prototype.toLocalISOString = function() {
  var off = this.getTimezoneOffset();
	return new Date(this.getFullYear(), this.getMonth(), this.getDate(), this.getHours(), this.getMinutes() - off, this.getSeconds(), this.getMilliseconds()).toISOString().slice(0,-1);
}

paulirish

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

youssman

function camelCaseToDash( myStr ) {
    return myStr.replace( /([a-z])([A-Z])/g, '$1-$2' ).toLowerCase();
}

var myStr = camelCaseToDash( 'thisString' );
alert( myStr ); // => this-string

kekscom

function toLocalISOString(d) {
  var off = d.getTimezoneOffset();
	return new Date(d.getFullYear(), d.getMonth(), d.getDate(), d.getHours(), d.getMinutes() - off, d.getSeconds(), d.getMilliseconds()).toISOString();
}

gre

/*
 * This work is free. You can redistribute it and/or modify it under the
 * terms of the Do What The Fuck You Want To Public License, Version 2,
 * as published by Sam Hocevar. See the COPYING file for more details.
 */
/*
 * Easing Functions - inspired from http://gizma.com/easing/
 * only considering the t value for the range [0, 1] => [0, 1]
 */
EasingFunctions = {

eligrey

/*
 * insertAdjacentHTML.js
 *   Cross-browser full HTMLElement.insertAdjacentHTML implementation.
 *
 * 2011-10-10
 *
 * By Eli Grey, http://eligrey.com
 * Public Domain.
 * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
 */