Troland

// relies on Date.now() which has been supported everywhere modern for years.
// as Safari 6 doesn't have support for NavigationTiming, we use a Date.now() timestamp for relative values

// if you want values similar to what you'd get with real perf.now, place this towards the head of the page
// but in reality, you're just getting the delta between now() calls, so it's not terribly important where it's placed

(function(){
  // prepare base perf object
  if (typeof window.performance === 'undefined') {
      window.performance = {};

Troland

// 银行号码位数分组
function groupCardNumber(cardNumber, digits) {
  const re = new RegExp('\\d{'+ digits + '}', 'g');
  
  return bankNumber.replace(re, function (match, offset, string) {
    if((offset + digits - 1) !== string.length - 1) {
      match = match + ' ';
    }
    return match;
  });

Troland

(function() {
  let lastTime = 0;
  const vendors = ['ms', 'moz', 'webkit', 'o'];
  for(let x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
    window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
    window.cancelAnimationFrame = window[vendors[x]+'CancelAnimationFrame'] || window[vendors[x]+'CancelRequestAnimationFrame'];
  }
  if (!window.requestAnimationFrame) {
    window.requestAnimationFrame = (callback, element) => {
      var currTime = new Date().getTime();

Troland

/**
 * Code copyright Dustin Diaz and Ross Harmes, Pro JavaScript Design Patterns.
 */

// Constructor.
var Interface = function(name, methods) {
  if (arguments.length != 2) {
    throw new Error("Interface constructor called with " + arguments.length + "arguments, but expected exactly 2.");
  }
  this.name = name;

Troland

function isPopWindowBlocked() {
  const win = window.open(url, '', '');
  
  return win === null;
}

Troland

const loadImage = (url, callback) => {
  const image = new Image();
  image.onload = () => {
    callback(null, image);
  };
  image.onerror = () => {
    callback(new Error('Could not load image at ' + url));
  };
  image.src = url;
}

Troland

function blobToDataURL(blob) {
  return new Promise((fulfill, reject) => {
    let reader = new FileReader();
    reader.onerror = reject;
    reader.onload = (e) => fulfill(reader.result);
    reader.readAsDataURL(blob);
  });
}

Troland

function urlB64ToUint8Array(base64String) {
  const padding = '='.repeat((4 - base64String.length % 4) % 4);
  const base64 = (base64String + padding)
    .replace(/\-/g, '+')
    .replace(/_/g, '/');

  const rawData = window.atob(base64);
  const outputArray = new Uint8Array(rawData.length);

  for (let i = 0; i < rawData.length; ++i) {

Troland

function requestPermission() {
  return new Promise((resolve, reject) => {
    const permissionResult = Notification.requestPermission((result) => {
      // Handling deprecated version with callback.
      resolve(result);
    });

    if (permissionResult) {
      permissionResult.then(resolve, reject);
    }

Troland

$.ajax({
  type: 'GET',
  url: {url},
  success: function(data) {
    alert('Success');
  },
  error: function(xhr, textStatus, errorThrown) {
    if (xhr.readyState == 4) {
      // HTTP error (can be checked by XMLHttpRequest.status and XMLHttpRequest.statusText)
    } else if (xhr.readyState == 0) {