[JavaScript]
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'0' + color : color; rgb.push(color) } return '#' + rgb.join('')};/** * 验证身份证号 * @param el 号码输入input * @returns {boolean} */export const checkCardNo = (el) => { let txtval = el.value; let reg = /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/; return reg.test(txtval);};/** * 获取字符串字节长度 * @param {String} * @returns {Boolean} */export const checkLength = (v) => { let realLength = 0; let len = v.length; for (let i = 0; i < len; i++) { let charCode = v.charCodeAt(i); if (charCode >= 0 && charCode <= 128) realLength += 1; else realLength += 2; } return realLength;};/** * 判断微信浏览器 * @returns {Boolean} */export const isWeiXin = () => { let ua = window.navigator.userAgent.toLowerCase(); if (ua.match(/MicroMessenger/i) == 'micromessenger') { return true; } else { return false; }};/** * 写cookies */export const setCookie = (name, value, time) => { let strsec = getsec(time); let exp = new Date(); exp.setTime(exp.getTime() + strsec * 1); document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();};/** * 读取cookies */export const getCookie = (name) => { let arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)"); if (arr = document.cookie.match(reg)) return (arr[2]); else return null;};/** * 删除cookies */export const delCookie = (name) => { let exp = new Date(); exp.setTime(exp.getTime() - 1); let cval = getCookie(name); if (cval != null) document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();};/** * 浏览器判断 * 用法示例——多套页面判断是否显示移动端： * let ua = parseUA(); * if (!ua.mobile) { * location.href = './pc.html'; * } */export const parseUA = () => { let u = navigator.userAgent; let u2 = navigator.userAgent.toLowerCase(); return { //移动终端浏览器版本信息 trident: u.indexOf('Trident') > -1, //IE内核 presto: u.indexOf('Presto') > -1, //opera内核 webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核 gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1, //火狐内核 mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端 ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端 android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android终端或uc浏览器 iPhone: u.indexOf('iPhone') > -1, //是否为iPhone或者QQHD浏览器 iPad: u.indexOf('iPad') > -1, //是否iPad webApp: u.indexOf('Safari') == -1, //是否web应该程序，没有头部与底部 iosv: u.substr(u.indexOf('iPhone OS') + 9, 3), weixin: u2.match(/MicroMessenger/i) == "micromessenger", ali: u.indexOf('AliApp') > -1, };};/** * 生成UUID * @returns {string} */export const generateUUID = () => { let d = new Date().getTime(); let uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) { let r = (d + Math.random() * 16) % 16 | 0; d = Math.floor(d / 16); return (c === 'x' ? r : (r & 0x7 | 0x8)).toString(16); }); return uuid;};/** * 删除左右两端的空格 * @param str * @returns {string | * | void} */function trim(str) { return str.replace(/(^\s*)|(\s*$)/g, "");}/** * 删除左边的空格 * @param str * @returns {string | * | void} */function ltrim(str) { return str.replace(/(^\s*)/g, "");}/** * 删除右边的空格 * @param str * @returns {string | * | void} */function rtrim(str) { return str.replace(/(\s*$)/g, "");}/** * 对象数组转二维数组 * @param objArr */function obj2Arr(objArr) { objArr.length > 0 && objArr.map(item => { return Object.values(item); })}/** * 找出对象数组中某属性的最大值 * @param array * @param item * @returns val */function maxItemInObjArr(array, item) { let max = Math.max.apply(Math, array.map(function (obj) { return obj[item]; })); return max;}/** * 判断当前网络环境 */export const isWifi = () => { try { let wifi = true; let ua = window.navigator.userAgent; let con = window.navigator.connection; // 如果是微信 if (/MicroMessenger/.test(ua)) { if (ua.indexOf('WIFI') >= 0) { return true } else { wifi = false } // 如果支持navigator.connection } else if (con) { let network = con.type; if (network !== 'wifi' && network !== '2' && network !== 'unknown') { wifi = false } } return wifi } catch (e) { return false }};/** * 首字母大写 * @param str * @returns {string} */export const fistLetterUpper = (str) => { return str.charAt(0).toUpperCase() + str.slice(1);};/** * 过滤非法字符串 */export const illegalFilter = (str) => { let regEn = /[`~!@#$%^&*()_+<>?:"{},.\/;'[\]]/im; let regCn = /[·！#￥（——）：；“”‘、，|《。》？、【】[\]]/im; if (regEn.test(str) || regCn.test(str)) return false; return true;}; |
