前端新手必备常用JavaScript方法函数大全 _JavaScript

给新手朋友分享我收藏的前端必备JAVAscript已经写好的封装好的方法函数，直接可用。方法函数总计：41个；以下给大家介绍有35个，需要整体文档的朋友私信我，
1、输入一个值，将其返回数据类型
function typego(para) {return Object.prototype.toString.call(para)}2、将数组去重
function SZque1(arr) {return [...new Set(arr)]}function SZique2(arr) {var obj = {};return arr.filter(ele => {if (!obj[ele]) {obj[ele] = true;return true;}})}function SZque3(arr) {var result = [];arr.forEach(ele => {if (result.indexOf(ele) == -1) {result.push(ele)}})return result;}3、将字符串去重
String.prototype.zque = function () {var obj = {},str = '',len = this.length;for (var i = 0; i < len; i++) {if (!obj[this[i]]) {str += this[i];obj[this[i]] = true;}}return str;}###### //去除连续的字符串 function qc(str) {return str.replace(/(w)1+/g, '$1')}4、浏览器cookie管理方法
var cookie = {set: function (name, value, time) {document.cookie = name + '=' + value + '; max-age=' + time;return this;},remove: function (name) {return this.setCookie(name, '', -1);},get: function (name, callback) {var allCookieArr = document.cookie.split('; ');for (var i = 0; i < allCookieArr.length; i++) {var itemCookieArr = allCookieArr[i].split('=');if (itemCookieArr[0] === name) {return itemCookieArr[1]}}return undefined;}}5、验证邮箱的正则表达式
function isEmail(sEmail) {var reg = /^([w+.])+@w+([.]w+)+$/return reg.test(sEmail)}6、圣杯模式的继承
function inherit(Target, Origin) {function F() {};F.prototype = Origin.prototype;Target.prototype = new F();Target.prototype.constructor = Target;// 最终的原型指向Target.prop.uber = Origin.prototype;}7、找出字符串中第一次只出现一次的字母