☰

CommonlyMainFunctions

Commonly used functions

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/447371/1066681/CommonlyMainFunctions.js 

  1. let isDebug = true;
  2. let os = function () {
  3.     var ua = navigator.userAgent, //获取浏览器UA
  4.         isWindowsPhone = /(?:Windows Phone)/.test(ua),
  5.         isSymbian = /(?:SymbianOS)/.test(ua) || isWindowsPhone,
  6.         isAndroid = /(?:Android)/.test(ua),
  7.         isFireFox = /(?:Firefox)/.test(ua),
  8.         isChrome = /(?:Chrome|CriOS)/.test(ua),
  9.         isTablet = /(?:iPad|PlayBook)/.test(ua) || (isAndroid && !/(?:Mobile)/.test(ua)) || (isFireFox && /(?:Tablet)/.test(ua)),
  10.         isPhone = /(?:iPhone)/.test(ua) && !isTablet,
  11.         isPc = !isPhone && !isAndroid && !isSymbian;
  12.     return {
  13.         isTablet: isTablet,
  14.         isPhone: isPhone,
  15.         isAndroid: isAndroid,
  16.         isPc: isPc
  17.     };
  18. }();
  19. function Get(link) {
  20.     return new Promise(function (resolve) {
  21.         $.get(link, data => {
  22.             resolve(data);
  23.         });
  24.     });
  25. }
  26. //日志
  27. function log() {
  28.     if (isDebug) {
  29.         console.log.apply(this, arguments);
  30.     }
  31. };
  32. function err() {
  33.     if (isDebug) {
  34.         console.error.apply(this, arguments);
  35.     }
  36. }
  37. function addStyle(statement = null, href = null) {
  38.     let mountElement = document.getElementsByTagName('head')[0];
  39.     if (mountElement) {
  40.         let style = null;
  41.         if (href !== null) {
  42.             style = document.createElement('link');
  43.             style.setAttribute('href', href);
  44.             style.setAttribute('rel', 'stylesheet');
  45.         } else if (statement !== null) {
  46.             style = document.createElement('style');
  47.             style.setAttribute('type', 'text/css');
  48.             style.textContent = statement;
  49.         }
  50.         return new Promise((resolve, reject) => {
  51.             try {
  52.                 mountElement.appendChild(style);
  53.                 style.onerror = (e) => reject(e);
  54.                 style.onload = () => {
  55.                     resolve();
  56.                 }
  57.             } catch (error) {
  58.                 reject(error);
  59.             }
  60.         });
  61.     }
  62.     return null;
  63. }
  64. function addScript(statement = null, src = null, isModule = false) {
  65.     let mountElement = document.getElementsByTagName('head')[0];
  66.     if (mountElement) {
  67.         let script = document.createElement("script");
  68.         if (src !== null) {
  69.             script.src = src;
  70.         } else if (statement !== null) {
  71.             script.textContent = statement;
  72.             if (isModule) script.type = "module";
  73.         }
  74.         return new Promise((resolve, reject) => {
  75.             try {
  76.                 mountElement.appendChild(script);
  77.                 script.onerror = (e) => reject(e);
  78.                 script.onload = () => {
  79.                     resolve();
  80.                 }
  81.             } catch (error) {
  82.                 reject(error);
  83.             }
  84.         });
  85.     }
  86.     return null;
  87. }
  88. //判断变量是否为空  空返回TRUE 否则返回 FALSE
  89. function isEmpty(param){
  90.     if(param){
  91.         var param_type = typeof(param);
  92.         if(param_type == 'object'){
  93.             //要判断的是【对象】或【数组】或【null】等
  94.             if(typeof(param.length) == 'undefined'){
  95.                 if(JSON.stringify(param) == "{}"){
  96.                     return true;//空值，空对象
  97.                 }
  98.             }else if(param.length == 0){
  99.                 return true;//空值，空数组
  100.             }
  101.         }else if(param_type == 'string'){
  102.             //如果要过滤空格等字符
  103.             var new_param = param.trim();
  104.             if(new_param.length == 0){
  105.                 //空值，例如:带有空格的字符串" "。
  106.                 return true;
  107.             }
  108.         }else if(param_type == 'boolean'){
  109.             if(!param){
  110.                 return true;
  111.             }
  112.         }else if(param_type== 'number'){
  113.             if(!param){
  114.                 return true;
  115.             }
  116.         }
  117.         return false;//非空值
  118.     }else{
  119.         //空值,例如：
  120.         //(1)null
  121.         //(2)可能使用了js的内置的名称，例如：var name=[],这个打印类型是字符串类型。
  122.         //(3)空字符串''、""。
  123.         //(4)数字0、00等，如果可以只输入0，则需要另外判断。
  124.         return true;
  125.     }
  126. }
  127. //自定义过滤函数
  128. function trimSpace(array) {
  129.     for (var i = 0; i < array.length; i++) {
  130.         //这里为过滤的值
  131.         if (array[i] == "" || array[i] == null || typeof (array[i]) == "undefined") {
  132.             array.splice(i, 1);
  133.             i = i - 1;
  134.         }
  135.     }
  136.     return array;
  137. }