常用的js库封装
Posted 松哥1204
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/*1.1.4*/ var ecDo = { /*字符串*/ //去除空格 type 1-所有空格 2-前后空格 3-前空格 4-后空格 //trim(‘ 1235asd‘,1) //result:1235asd trim: function(str, type) { switch (type) { case 1: return str.replace(/\s+/g, ""); case 2: return str.replace(/(^\s*)|(\s*$)/g, ""); case 3: return str.replace(/(^\s*)/g, ""); case 4: return str.replace(/(\s*$)/g, ""); default: return str; } }, /*type 1: 首字母大写 2:首字母小写 3:大小写转换 4:全部大写 5:全部小写 * */ //changeCase(‘asdasd‘,1) //result:Asdasd changeCase: function(str, type) { function ToggleCase(str) { var itemText = "" str.split("").forEach( function(item) { if (/^([a-z]+)/.test(item)) { itemText += item.toUpperCase(); } else if (/^([A-Z]+)/.test(item)) { itemText += item.toLowerCase(); } else { itemText += item; } }); return itemText; } switch (type) { case 1: return str.replace(/\b\w+\b/g, function(word) { return word.substring(0, 1).toUpperCase() + word.substring(1).toLowerCase(); }); case 2: return str.replace(/\b\w+\b/g, function(word) { return word.substring(0, 1).toLowerCase() + word.substring(1).toUpperCase(); }); case 3: return ToggleCase(str); case 4: return str.toUpperCase(); case 5: return str.toLowerCase(); default: return str; } }, //字符串循环复制 //repeatStr(str->字符串, count->次数) //repeatStr(‘123‘,3) //"result:123123123" repeatStr: function(str, count) { var text = ‘‘; for (var i = 0; i < count; i++) { text += str; } return text; }, //字符串替换(字符串,要替换的字符或者正则表达式(不要写g),替换成什么) //ecDo.replaceAll(‘这里是上海,中国第三大城市,广东省省会,简称穗,‘,‘上海‘,‘广州‘) //result:"这里是广州,中国第三大城市,广东省省会,简称穗," replaceAll: function(str, AFindText, ARepText) { raRegExp = new RegExp(AFindText, "g"); return str.replace(raRegExp, ARepText); }, //字符替换* //replaceStr(字符串,字符格式, 替换方式,替换的字符(默认*)) //type: 0.依次从前面开始替换的个数 1.从最后一个开始替换的个数 //replaceStr(‘1asd88465asdwqe3‘,[5],1,‘+‘) replaceStr(‘1asd88465asdwqe3‘,[5],0,‘+‘) //result:"1asd88465as+++++" result:"+++++8465asdwqe3" replaceStr: function(str, regArr, type, ARepText) { var regtext = ‘‘, Reg = null, replaceText = ARepText || ‘*‘; //replaceStr(‘18819322663‘,[3,5,3],0) //result:188*****663 //repeatStr是在上面定义过的(字符串循环复制),大家注意哦 if (regArr.length === 3 && type === 0) { regtext = ‘(\\w{‘ + regArr[0] + ‘})\\w{‘ + regArr[1] + ‘}(\\w{‘ + regArr[2] + ‘})‘ Reg = new RegExp(regtext); var replaceCount = this.repeatStr(replaceText, regArr[1]); return str.replace(Reg, ‘$1‘ + replaceCount + ‘$2‘) } //replaceStr(‘asdasdasdaa‘,[3,5,3],1) //result:***asdas*** else if (regArr.length === 3 && type === 1) { regtext = ‘\\w{‘ + regArr[0] + ‘}(\\w{‘ + regArr[1] + ‘})\\w{‘ + regArr[2] + ‘}‘ Reg = new RegExp(regtext); var replaceCount1 = this.repeatStr(replaceText, regArr[0]); var replaceCount2 = this.repeatStr(replaceText, regArr[2]); return str.replace(Reg, replaceCount1 + ‘$1‘ + replaceCount2) } //replaceStr(‘1asd88465asdwqe3‘,[5],0) //result:*****8465asdwqe3 else if (regArr.length === 1 && type === 0) { regtext = ‘(^\\w{‘ + regArr[0] + ‘})‘ Reg = new RegExp(regtext); var replaceCount = this.repeatStr(replaceText, regArr[0]); return str.replace(Reg, replaceCount) } //replaceStr(‘1asd88465asdwqe3‘,[5],1,‘+‘) //result:"1asd88465as+++++" else if (regArr.length === 1 && type === 1) { regtext = ‘(\\w{‘ + regArr[0] + ‘}$)‘ Reg = new RegExp(regtext); var replaceCount = this.repeatStr(replaceText, regArr[0]); return str.replace(Reg, replaceCount) } }, //检测字符串 //checkType(‘165226226326‘,‘phone‘) //result:false //大家可以根据需要扩展 checkType: function(str, type) { switch (type) { case ‘email‘: return /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.test(str); case ‘phone‘: return /^1[3|4|5|7|8][0-9]{9}$/.test(str); case ‘tel‘: return /^(0\d{2,3}-\d{7,8})(-\d{1,4})?$/.test(str); case ‘number‘: return /^[0-9]$/.test(str); case ‘english‘: return /^[a-zA-Z]+$/.test(str); case ‘text‘: return /^\w+$/.test(str); case ‘chinese‘: return /^[\u4E00-\u9FA5]+$/.test(str); case ‘lower‘: return /^[a-z]+$/.test(str); case ‘upper‘: return /^[A-Z]+$/.test(str); default: return true; } }, //检测密码强度 //checkPwd(‘12asdASAD‘) //result:3(强度等级为3) checkPwd: function(str) { var nowLv = 0; if (str.length < 6) { return nowLv } if (/[0-9]/.test(str)) { nowLv++ } if (/[a-z]/.test(str)) { nowLv++ } if (/[A-Z]/.test(str)) { nowLv++ } if (/[\.|-|_]/.test(str)) { nowLv++ } return nowLv; }, //随机码 //count取值范围2-36 //randomWord(10) //result:"2584316588472575" //randomWord(14) //result:"9b405070dd00122640c192caab84537" //randomWord(36) //result:"83vhdx10rmjkyb9" randomWord: function(count) { return Math.random().toString(count).substring(2); }, //查找字符串 //strSplit: 出现在字符串里的次数 //var strTest=‘sad44654blog5a1sd67as9dablog4s5d16zxc4sdweasjkblogwqepaskdkblogahseiuadbhjcibloguyeajzxkcabloguyiwezxc967‘ //countStr(strTest,‘blog‘) //result:6 countStr: function(str, strSplit) { return str.split(strSplit).length - 1 }, //过滤字符串(html标签,表情,特殊字符) //字符串,替换内容(special-特殊字符,html-html标签,emjoy-emjoy表情,word-小写字母,WORD-大写字母,number-数字,chinese-中文),要替换成什么,默认‘‘,保留哪些特殊字符 //如果需要过滤多种字符,type参数使用,分割,如下栗子 //过滤字符串的html标签,大写字母,中文,特殊字符,全部替换成*,但是特殊字符‘%‘,‘?‘,除了这两个,其他特殊字符全部清除 //var str=‘asd 654a大蠢sasdasdASDQWEXZC6d5#%^*^&*^%^&*$\\"\‘#@!()*/-())_\‘":"{}?<div></div><img src=""/>啊实打实大蠢猪自行车这些课程‘; // ecDo.filterStr(str,‘html,WORD,chinese,special‘,‘*‘,‘%?‘) //result:"asd 654a**sasdasd*********6d5#%^*^&*^%^&*$\"‘#@!()*/-())_‘":"{}?*****************" filterStr: function(str, type, restr, spstr) { var typeArr = type.split(‘,‘), _str = str; for (var i = 0, len = typeArr.length; i < len; i++) { //是否是过滤特殊符号 if (typeArr[i] === ‘special‘) { var pattern, regText = ‘$()[]{}?\|^*+./\"\‘+‘; //是否有哪些特殊符号需要保留 if (spstr) { var _spstr = spstr.split(""), _regText = "[^0-9A-Za-z\\s"; for (var j = 0, len1 = _spstr.length; j < len1; j++) { if (regText.indexOf(_spstr[j]) === -1) { _regText += _spstr[j]; } else { _regText += ‘\\‘ + _spstr[j]; } } _regText += ‘]‘ pattern = new RegExp(_regText, ‘g‘); } else { pattern = new RegExp("[^0-9A-Za-z\\s]", ‘g‘) } } var _restr = restr || ‘‘; switch (typeArr[i]) { case ‘special‘: _str = _str.replace(pattern, _restr); break; case ‘html‘: _str = _str.replace(/<\/?[^>]*>/g, _restr); break; case ‘emjoy‘: _str = _str.replace(/[^\u4e00-\u9fa5|\u0000-\u00ff|\u3002|\uFF1F|\uFF01|\uff0c|\u3001|\uff1b|\uff1a|\u3008-\u300f|\u2018|\u2019|\u201c|\u201d|\uff08|\uff09|\u2014|\u2026|\u2013|\uff0e]/g, _restr); break; case ‘word‘: _str = _str.replace(/[a-z]/g, _restr); break; case ‘WORD‘: _str = _str.replace(/[A-Z]/g, _restr); break; case ‘number‘: _str = _str.replace(/[0-9]/g, _restr); break; case ‘chinese‘: _str = _str.replace(/[\u4E00-\u9FA5]/g, _restr); break; } } return _str; }, //格式化处理字符串 //ecDo.formatText(‘1234asda567asd890‘) //result:"12,34a,sda,567,asd,890" //ecDo.formatText(‘1234asda567asd890‘,4,‘ ‘) //result:"1 234a sda5 67as d890" //ecDo.formatText(‘1234asda567asd890‘,4,‘-‘) //result:"1-234a-sda5-67as-d890" formatText: function(str, size, delimiter) { var _size = size || 3, _delimiter = delimiter || ‘,‘; var regText = ‘\\B(?=(\\w{‘ + _size + ‘})+(?!\\w))‘; var reg = new RegExp(regText, ‘g‘); return str.replace(reg, _delimiter); }, //找出最长单词 (Find the Longest word in a String) //longestWord(‘Find the Longest word in a String‘) //result:7 //longestWord(‘Find|the|Longest|word|in|a|String‘,‘|‘) //result:7 longestWord: function(str, splitType) { var _splitType = splitType || /\s+/g, _max = 0; var strArr = str.split(_splitType); strArr.forEach(function(item) { if (_max < item.length) { _max = item.length } }) return _max; }, //句中单词首字母大写 (Title Case a Sentence) //这个我也一直在纠结,英文标题,即使是首字母大写,也未必每一个单词的首字母都是大写的,但是又不知道哪些应该大写,哪些不应该大写 //ecDo.titleCaseUp(‘this is a title‘) //"This Is A Title" titleCaseUp: function(str, splitType) { var _splitType = splitType || /\s+/g; var strArr = str.split(_splitType), result = "", _this = this strArr.forEach(function(item) { result += _this.changeCase(item, 1) + ‘ ‘; }) return this.trim(result, 4) }, /*数组*/ //数组去重 removeRepeatArray: function(arr) { return arr.filter(function(item, index, self) { return self.indexOf(item) === index; }); //es6 //return Array.from(new Set(arr)) }, //数组顺序打乱 upsetArr: function(arr) { return arr.sort(function() { return Math.random() - 0.5 }); }, //数组最大值 //这一块的封装,主要是针对数字类型的数组 //例如:maxArr([10,20,15]) //输出结果:20 maxArr: function(arr) { return Math.max.apply(null, arr); }, //数组最小值 minArr: function(arr) { return Math.min.apply(null, arr); }, //这一块的封装,主要是针对数字类型的数组 //数组求和 sumArr: function(arr) { return arr.reduce(function(pre, cur) { return pre + cur }) }, //数组平均值,小数点可能会有很多位,这里不做处理,处理了使用就不灵活了! covArr: function(arr) { return this.sumArr(arr) / arr.length; }, //从数组中随机获取元素 randomOne: function(arr) { return arr[Math.floor(Math.random() * arr.length)]; }, //回数组(字符串)一个元素出现的次数 //getEleCount(‘asd56+asdasdwqe‘,‘a‘) //result:3 //getEleCount([1,2,3,4,5,66,77,22,55,22],22) //result:2 getEleCount: function(obj, ele) { var num = 0; for (var i = 0, len = obj.length; i < len; i++) { if (ele === obj[i]) { num++; } } return num; }, //得到n1-n2下标的数组 //getArrayNum([0,1,2,3,4,5,6,7,8,9],5,9) //result:[5, 6, 7, 8, 9] //getArrayNum([0,1,2,3,4,5,6,7,8,9],2) 不传第二个参数,默认返回从n1到数组结束的元素 //result:[2, 3, 4, 5, 6, 7, 8, 9] getArrayNum: function(arr, n1, n2) { var arr1 = arr.slice(n1, n2); return arr1; }, //筛选数组 //删除值为‘val‘的数组元素 //removeArrayForValue([‘test‘,‘test1‘,‘test2‘,‘test‘,‘aaa‘],‘test‘,‘%‘) //result:["aaa"] 带有‘test‘的都删除 //removeArrayForValue([‘test‘,‘test1‘,‘test2‘,‘test‘,‘aaa‘],‘test‘) //result:["test1", "test2", "aaa"] //数组元素的值全等于‘test‘才被删除 removeArrayForValue: function(arr, val, type) { return arr.filter(function(item) { return type ? item.indexOf(val) === -1 : item !== val }) }, //获取对象数组某些项 //var arr=[{a:1,b:2,c:9},{a:2,b:3,c:5},{a:5,b:9},{a:4,b:2,c:5},{a:4,b:5,c:7}] //getOptionArray(arr,‘a,c‘) //result:[{a:1,c:9},{a:2,c:5},{a:5,c:underfind},{a:4,c:5},{a:4,c:7}] //getOptionArray(arr,‘b‘,1) //result:[2, 3, 9, 2, 5] getOptionArray: function(arr, keys, type) { var newArr = [] if (!keys) { return arr } //是否只是需要获取某一项的值 if (type === 1) { for (var i = 0, len = arr.length; i < len; i++) { newArr.push(arr[i][keys]) } return newArr; } var _keys = keys.split(‘,‘), newArrOne = {}; for (var i = 0, len = arr.length; i < len; i++) { newArrOne = {}; for (var j = 0, len1 = _keys.length; j < len1; j++) { newArrOne[_keys[j]] = arr[i][_keys[j]] } newArr.push(newArrOne); } return newArr }, //排除数组某些项 //var arr=[{a:1,b:2,c:9},{a:2,b:3,c:5},{a:5,b:9},{a:4,b:2,c:5},{a:4,b:5,c:7}] //filterOptionArray(arr,‘a‘) //result:[{b:2,c:9},{b:3,c:5},{b:9},{b:2,c:5},{b:5,c:7}] //filterOptionArray(arr,‘a,c‘) //result:[{b:2},{b:3},{b:9},{b:2},{b:5}] filterOptionArray: function(arr, keys) { var newArr = [] var _keys = keys.split(‘,‘), newArrOne = {}; for (var i = 0, len = arr.length; i < len; i++) { newArrOne = {}; for (var key in arr[i]) { //如果key不存在排除keys里面,添加数据 if (_keys.indexOf(key) === -1) { newArrOne[key] = arr[i][key]; } } newArr.push(newArrOne); } return newArr }, //对象数组的排序 //var arr=[{a:1,b:2,c:9},{a:2,b:3,c:5},{a:5,b:9},{a:4,b:2,c:5},{a:4,b:5,c:7}] //ecDo.arraySort(arr,‘a,b‘)a是第一排序条件,b是第二排序条件 //result:[{"a":1,"b":2,"c":9},{"a":2,"b":3,"c":5},{"a":4,"b":2,"c":5},{"a":4,"b":5,"c":7},{"a":5,"b":9}] arraySort: function(arr, sortText) { if (!sortText) { return arr } var _sortText = sortText.split(‘,‘).reverse(), _arr = arr.slice(0); for (var i = 0, len = _sortText.length; i < len; i++) { _arr.sort(function(n1, n2) { return n1[_sortText[i]] - n2[_sortText[i]] }) } return _arr; }, //数组扁平化 steamroller: function(arr) { var newArr = [], _this = this; for (var i = 0; i < arr.length; i++) { if (Array.isArray(arr[i])) { // 如果是数组,调用(递归)steamroller 将其扁平化 // 然后再 push 到 newArr 中 newArr.push.apply(newArr, _this.steamroller(arr[i])); } else { // 不是数组直接 push 到 newArr 中 newArr.push(arr[i]); } } return newArr; }, //另一种写法 //steamroller([1,2,[4,5,[1,23]]]) //[1, 2, 4, 5, 1, 23] /* * i=0 newArr.push(arr[i]) [1] * i=1 newArr.push(arr[i]) [1,2] * i=2 newArr = newArr.concat(steamroller(arr[i])); 执行到下面 * 第一次i=2进入后 i=0, newArr.push(arr[i]); [4] * 第一次i=2进入后 i=1, newArr.push(arr[i]); [4,5] * * i=2 newArr = newArr.concat(steamroller(arr[i])); 执行到下面 * 第二次i=2进入后 i=0, newArr.push(arr[i]); [1] * 第二次i=2进入后 i=1, newArr.push(arr[i]); [1,23] 执行到下面 * 第二次循环完,回到第一次进入后 newArr = newArr.concat(steamroller(arr[i])); [4,5].concat([1,23]) [4,5,1,23] * 然后回到第一次 [1,2].concat([4,5,1,23]) */ // steamroller: function (arr) { // var newArr = []; // for (var i = 0; i < arr.length; i++) { // if (Array.isArray(arr[i])) { // // 如果是数组,调用(递归)steamroller 将其扁平化 // // 然后再 push 到 newArr 中 // newArr = newArr.concat(steamroller(arr[i])); // } else { // // 不是数组直接 push 到 newArr 中 // newArr.push(arr[i]); // } // } // return newArr; // }, /*对象及其他*/ //适配rem getFontSize: function() { var doc = document, win = window; var docEl = doc.documentElement, resizeEvt = ‘orientationchange‘ in window ? ‘orientationchange‘ : ‘resize‘, recalc = function() { var clientWidth = docEl.clientWidth; if (!clientWidth) return; //如果屏幕大于750(750是根据我效果图设置的,具体数值参考效果图),就设置clientWidth=750,防止font-size会超过100px if (clientWidth > 750) { clientWidth = 750 } //设置根元素font-size大小 docEl.style.fontSize = 100 * (clientWidth / 750) + ‘px‘; }; //屏幕大小改变,或者横竖屏切换时,触发函数 win.addEventListener(resizeEvt, recalc, false); //文档加载完成时,触发函数 doc.addEventListener(‘DOMContentLoaded‘, recalc, false); }, //到某一个时间的倒计时 //getEndTime(‘2017/7/22 16:0:0‘) //result:"剩余时间6天 2小时 28 分钟20 秒" getEndTime: function(endTime) { var startDate = new Date(); //开始时间,当前时间 var endDate = new Date(endTime); //结束时间,需传入时间参数 var t = endDate.getTime() - startDate.getTime(); //时间差的毫秒数 var d = 0, h = 0, m = 0, s = 0; if (t >= 0) { d = Math.floor(t / 1000 / 3600 / 24); h = Math.floor(t / 1000 / 60 / 60 % 24); m = Math.floor(t / 1000 / 60 % 60); s = Math.floor(t / 1000 % 60); return "剩余时间" + d + "天 " + h + "小时 " + m + " 分钟" + s + " 秒"; } else { return ‘时间错误!!!‘; } }, //随进产生颜色 randomColor: function() { //randomNumber是下面定义的函数 //写法1 //return ‘rgb(‘ + this.randomNumber(255) + ‘,‘ + this.randomNumber(255) + ‘,‘ + this.randomNumber(255) + ‘)‘; //写法2 return ‘#‘ + Math.random().toString(16).substring(2).substr(0, 6); //写法3 //var color=‘#‘,_index=this.randomNumber(15); //for(var i=0;i<6;i++){ //color+=‘0123456789abcdef‘[_index]; //} //return color; }, //随机返回一个范围的数字 randomNumber: function(n1, n2) { //randomNumber(5,10) //返回5-10的随机整数,包括5,10 if (arguments.length === 2) { return Math.round(n1 + Math.random() * (n2 - n1)); } //randomNumber(10) //返回0-10的随机整数,包括0,10 else if (arguments.length === 1) { return Math.round(Math.random() * n1) } //randomNumber() //返回0-255的随机整数,包括0,255 else { return Math.round(Math.random() * 255) } }, //设置url参数 //setUrlPrmt({‘a‘:1,‘b‘:2}) //result:a=1&b=2 setUrlPrmt: function(obj) { var _rs = []; for (var p in obj) { if (obj[p] != null && obj[p] != ‘‘) { _rs.push(p + ‘=‘ + obj[p]) } } return _rs.join(‘&‘); }, //获取url参数 //getUrlPrmt(‘segmentfault.com/write?draftId=122000011938‘) //result:Object{draftId: "122000011938"} getUrlPrmt: function(url) { url = url ? url : window.location.href; var _pa = url.substring(url.indexOf(‘?‘) + 1), _arrS = _pa.split(‘&‘), _rs = {}; for (var i = 0, _len = _arrS.length; i < _len; i++) { var pos = _arrS[i].indexOf(‘=‘); if (pos == -1) { continue; } var name = _arrS[i].substring(0, pos), value = window.decodeURIComponent(_arrS[i].substring(pos + 1)); _rs[name] = value; } return _rs; }, //现金额大写转换函数 //upDigit(168752632) //result:"人民币壹亿陆仟捌佰柒拾伍万贰仟陆佰叁拾贰元整" //upDigit(1682) //result:"人民币壹仟陆佰捌拾贰元整" //upDigit(-1693) //result:"欠人民币壹仟陆佰玖拾叁元整" upDigit: function(n) { var fraction = [‘角‘, ‘分‘, ‘厘‘]; var digit = [‘零‘, ‘壹‘, ‘贰‘, ‘叁‘, ‘肆‘, ‘伍‘, ‘陆‘, ‘柒‘, ‘捌‘, ‘玖‘]; var unit = [ [‘元‘, ‘万‘, ‘亿‘], [‘‘, ‘拾‘, ‘佰‘, ‘仟‘] ]; var head = n < 0 ? ‘欠人民币‘ : ‘人民币‘; n = Math.abs(n); var s = ‘‘; for (var i = 0; i < fraction.length; i++) { s += (digit[Math.floor(n * 10 * Math.pow(10, i)) % 10] + fraction[i]).replace(/零./, ‘‘); } s = s || ‘整‘; n = Math.floor(n); for (var i = 0; i < unit[0].length && n > 0; i++) { var p = ‘‘; for (var j = 0; j < unit[1].length && n > 0; j++) { p = digit[n % 10] + unit[1][j] + p; n = Math.floor(n / 10); } s = p.replace(/(零.)*零$/, ‘‘).replace(/^$/, ‘零‘) + unit[0][i] + s; //s = p + unit[0][i] + s; } return head + s.replace(/(零.)*零元/, ‘元‘).replace(/(零.)+/g, ‘零‘).replace(/^整$/, ‘零元整‘); }, //清除对象中值为空的属性 //filterParams({a:"",b:null,c:"010",d:123}) //Object {c: "010", d: 123} filterParams: function(obj) { var _newPar = {}; for (var key in obj) { if ((obj[key] === 0 || obj[key]) && obj[key].toString().replace(/(^\s*)|(\s*$)/g, ‘‘) !== ‘‘) { _newPar[key] = obj[key]; } } return _newPar; }, //cookie //设置cookie setCookie: function(name, value, iDay) { var oDate = new Date(); oDate.setDate(oDate.getDate() + iDay); document.cookie = name + ‘=‘ + value + ‘;expires=‘ + oDate; }, //获取cookie getCookie: function(name) { var arr = document.cookie.split(‘; ‘); for (var i = 0; i < arr.length; i++) { var arr2 = arr[i].split(‘=‘); if (arr2[0] == name) { return arr2[1]; } } return ‘‘; }, //删除cookie removeCookie: function(name) { this.setCookie(name, 1, -1); }, /*DOM*/ //检测对象是否有哪个类名 hasClass: function(obj, classStr) { if (obj.className && this.trim(obj.className, 1) !== "") { var arr = obj.className.split(/\s+/); //这个正则表达式是因为class可以有多个,判断是否包含 return (arr.indexOf(classStr) == -1) ? false : true; } else { return false; } }, //添加类名 addClass: function(obj, classStr) { if ((this.istype(obj, ‘array‘) || this.istype(obj, ‘elements‘)) && obj.length >= 1) { for (var i = 0, len = obj.length; i < len; i++) { if (!this.hasClass(obj[i], classStr)) { obj[i].className += " " + classStr; } } } else { if (!this.hasClass(obj, classStr)) { obj.className += " " + classStr; } } }, //删除类名 removeClass: function(obj, classStr) { if ((this.istype(obj, ‘array‘) || this.istype(obj, ‘elements‘)) && obj.length > 1) { for (var i = 0, len = obj.length; i < len; i++) { if (this.hasClass(obj[i], classStr)) { var reg = new RegExp(‘(\\s|^)‘ + classStr + ‘(\\s|$)‘); obj[i].className = obj[i].className.replace(reg, ‘‘); } } } else { if (this.hasClass(obj, classStr)) { var reg = new RegExp(‘(\\s|^)‘ + classStr + ‘(\\s|$)‘); obj.className = obj.className.replace(reg, ‘‘); } } }, //替换类名("被替换的类名","替换的类名") replaceClass: function(obj, newName, oldName) { this.removeClass(obj, oldName); this.addClass(obj, newName); }, //获取兄弟节点 //ecDo.siblings(obj,‘#id‘) siblings: function(obj, opt) { var a = []; //定义一个数组,用来存o的兄弟元素 var p = obj.previousSibling; while (p) { //先取o的哥哥们 判断有没有上一个哥哥元素,如果有则往下执行 p表示previousSibling if (p.nodeType === 1) { a.push(p); } p = p.previousSibling //最后把上一个节点赋给p } a.reverse() //把顺序反转一下 这样元素的顺序就是按先后的了 var n = obj.nextSibling; //再取o的弟弟 while (n) { //判断有没有下一个弟弟结点 n是nextSibling的意思 if (n.nodeType === 1) { a.push(n); } n = n.nextSibling; } if (opt) { var _opt = opt.substr(1); var b = []; //定义一个数组,用于储存过滤a的数组 if (opt[0] === ‘.‘) { b = a.filter(function(item) { return item.className === _opt }); } else if (opt[0] === ‘#‘) { b = a.filter(function(item) { return item.id === _opt }); } else { b = a.filter(function(item) { return item.tagName.toLowerCase() === opt }); } return b; } return a; }, //设置样式 css: function(obj, json) { for (var attr in json) { obj.style[attr] = json[attr]; } }, //设置HTML内容 html: function(obj) { if (arguments.length === 1) { return obj.innerHTML; } else if (arguments.length === 2) { obj.innerHTML = arguments[1]; } }, //设置HTML内容 text: function(obj) { if (arguments.length === 1) { return obj.innerHTML; } else if (arguments.length === 2) { obj.innerHTML = this.filterStr(arguments[1], ‘html‘); } }, //显示隐藏 show: function(obj) { var blockArr = [‘div‘, ‘li‘, ‘ul‘, ‘ol‘, ‘dl‘, ‘table‘, ‘article‘, ‘h1‘, ‘h2‘, ‘h3‘, ‘h4‘, ‘h5‘, ‘h6‘, ‘p‘, ‘hr‘, ‘header‘, ‘footer‘, ‘details‘, ‘summary‘, ‘section‘, ‘aside‘, ‘‘] if (blockArr.indexOf(obj.tagName.toLocaleLowerCase()) === -1) { obj.style.display = ‘inline‘; } else { obj.style.display = ‘block‘; } }, hide: function(obj) { obj.style.display = "none"; }, /* 封装ajax函数 * @param {string}obj.type http连接的方式,包括POST和GET两种方式 * @param {string}obj.url 发送请求的url * @param {boolean}obj.async 是否为异步请求,true为异步的,false为同步的 * @param {object}obj.data 发送的参数,格式为对象类型 * @param {function}obj.success ajax发送并接收成功调用的回调函数 * @param {function}obj.error ajax发送失败或者接收失败调用的回调函数 */ // ajax({ // type:‘get‘, // url:‘xxx‘, // data:{ // id:‘111‘ // }, // success:function(res){ // console.log(res) // } // }) ajax: function(obj) { obj = obj || {}; obj.type = obj.type.toUpperCase() || ‘POST‘; obj.url = obj.url || ‘‘; obj.async = obj.async || true; obj.data = obj.data || null; obj.success = obj.success || function() {}; obj.error = obj.error || function() {}; var xmlHttp = null; if (XMLHttpRequest) { xmlHttp = new XMLHttpRequest(); } else { xmlHttp = new ActiveXObject(‘Microsoft.XMLHTTP‘); } var params = []; for (var key in obj.data) { params.push(key + ‘=‘ + obj.data[key]); } var postData = params.join(‘&‘); if (obj.type.toUpperCase() === ‘POST‘) { xmlHttp.open(obj.type, obj.url, obj.async); xmlHttp.setRequestHeader(‘Content-Type‘, ‘application/x-www-form-urlencoded;charset=utf-8‘); xmlHttp.send(postData); } else if (obj.type.toUpperCase() === ‘GET‘) { xmlHttp.open(obj.type, obj.url + ‘?‘ + postData, obj.async); xmlHttp.send(null); } xmlHttp.onreadystatechange = function() { if (xmlHttp.readyState == 4 && xmlHttp.status == 200) { obj.success(xmlHttp.responseText); } else { obj.error(xmlHttp.responseText); } }; }, //图片没加载出来时用一张图片代替 aftLoadImg: function(obj, url, errorUrl, cb) { var oImg = new Image(), _this = this; oImg.src = url; oImg.onload = function() { obj.src = oImg.src; if (cb && _this.istype(cb, ‘function‘)) { cb(obj); } } oImg.onerror = function() { obj.src = errorUrl; if (cb && _this.istype(cb, ‘function‘)) { cb(obj); } } }, //图片滚动懒加载 //@className {string} 要遍历图片的类名 //@num {number} 距离多少的时候开始加载 默认 0 //比如,一张图片距离文档顶部3000,num参数设置200,那么在页面滚动到2800的时候,图片加载。不传num参数就滚动,num默认是0,页面滚动到3000就加载 //html代码 //<p><img data-src="lawyerOtherImg.jpg" class="load-img" width=‘528‘ height=‘304‘ /></p> //<p><img data-src="lawyerOtherImg.jpg" class="load-img" width=‘528‘ height=‘304‘ /></p> //<p><img data-src="lawyerOtherImg.jpg" class="load-img" width=‘528‘ height=‘304‘ /></p>.... //data-src储存src的数据,到需要加载的时候把data-src的值赋值给src属性,图片就会加载。 //详细可以查看testLoadImg.html //window.onload = function() { // loadImg(‘load-img‘,100); // window.onscroll = function() { // loadImg(‘load-img‘,100); // } //} loadImg: function(className, num, errorUrl) { var _className = className || ‘ec-load-img‘, _num = num || 0, _this = this, _errorUrl = errorUrl || null; var oImgLoad = document.getElementsByClassName(_className); for (var i = 0, len = oImgLoad.length; i < len; i++) { if (document.documentElement.clientHeight + document.documentElement.scrollTop > oImgLoad[i].offsetTop - _num && !oImgLoad[i].isLoad) { //记录图片是否已经加载 oImgLoad[i].isLoad = true; //设置过渡,当图片下来的时候有一个图片透明度变化 oImgLoad[i].style.cssText = "transition: ‘‘; opacity: 0;" if (oImgLoad[i].dataset) { this.aftLoadImg(oImgLoad[i], oImgLoad[i].dataset.src, _errorUrl, function(o) { setTimeout(function() { if (o.isLoad) { _this.removeClass(o, _className); o.style.cssText = ""; } }, 1000) }); } else { this.aftLoadImg(oImgLoad[i], oImgLoad[i].getAttribute("data-src"), _errorUrl, function(o) { setTimeout(function() { if (o.isLoad) { _this.removeClass(o, _className); o.style.cssText = ""; } }, 1000) }); } (function(i) { setTimeout(function() { oImgLoad[i].style.cssText = "transition:all 1s; opacity: 1;"; }, 16) })(i); } } }, //创建正则字符 createKeyExp: function(strArr) { var str = ""; for (var i = 0; i < strArr.length; i++) { if (i != strArr.length - 1) { str = str + strArr[i] + "|"; } else { str = str + strArr[i]; } } return "(" + str + ")"; }, //关键字加标签(多个关键词用空格隔开) //ecDo.findKey(‘守侯我oaks接到了来自下次你离开快乐吉祥留在开城侯‘,‘守侯 开‘,‘i‘) //"<i>守侯</i>我oaks接到了来自下次你离<i>开</i>快乐吉祥留在<i>开</i>城侯" findKey: function(str, key, el) { var arr = null, regStr = null, content = null, Reg = null, _el = el || ‘span‘; arr = key.split(/\s+/); //alert(regStr); // 如:(前端|过来) regStr = this.createKeyExp(arr); content = str; //alert(Reg);// /如:(前端|过来)/g Reg = new RegExp(regStr, "g"); //过滤html标签 替换标签,往关键字前后加上标签 content = content.replace(/<\/?[^>]*>/g, ‘‘) return content.replace(Reg, "<" + _el + ">$1</" + _el + ">"); }, //数据类型判断 //ecDo.istype([],‘array‘) //true //ecDo.istype([]) //‘[object Array]‘ istype: function(o, type) { if (type) { var _type = type.toLowerCase(); } switch (_type) { case ‘string‘: return Object.prototype.toString.call(o) === ‘[object String]‘; case ‘number‘: return Object.prototype.toString.call(o) === ‘[object Number]‘; case ‘boolean‘: return Object.prototype.toString.call(o) === ‘[object Boolean]‘; case ‘undefined‘: return Object.prototype.toString.call(o) === ‘[object Undefined]‘; case ‘null‘: return Object.prototype.toString.call(o) === ‘[object Null]‘; case ‘function‘: return Object.prototype.toString.call(o) === ‘[object Function]‘; case ‘array‘: return Object.prototype.toString.call(o) === ‘[object Array]‘; case ‘object‘: return Object.prototype.toString.call(o) === ‘[object Object]‘; case ‘nan‘: return isNaN(o); case ‘elements‘: return Object.prototype.toString.call(o).indexOf(‘HTML‘) !== -1 default: return Object.prototype.toString.call(o) } }, //手机类型判断 browserInfo: function(type) { switch (type) { case ‘android‘: return navigator.userAgent.toLowerCase().indexOf(‘android‘) !== -1 case ‘iphone‘: return navigator.userAgent.toLowerCase().indexOf(‘iphone‘) !== -1 case ‘ipad‘: return navigator.userAgent.toLowerCase().indexOf(‘ipad‘) !== -1 case ‘weixin‘: return navigator.userAgent.toLowerCase().indexOf(‘micromessenger‘) !== -1 default: return navigator.userAgent.toLowerCase() } }, //函数节流 // var count=0; // function fn1(){ // count++; // console.log(count) // } // //100ms内连续触发的调用,后一个调用会把前一个调用的等待处理掉,但每隔200ms至少执行一次 // document.onmousemove=delayFn(fn1,100,200) delayFn: function(fn, delay, mustDelay) { var timer = null; var t_start; return function() { var context = this, args = arguments, t_cur = +new Date(); //先清理上一次的调用触发(上一次调用触发事件不执行) clearTimeout(timer); //如果不存触发时间,那么当前的时间就是触发时间 if (!t_start) { t_start = t_cur; } //如果当前时间-触发时间大于最大的间隔时间(mustDelay),触发一次函数运行函数 if (t_cur - t_start >= mustDelay) { fn.apply(context, args); t_start = t_cur; } //否则延迟执行 else { timer = setTimeout(function() { fn.apply(context, args); }, delay); } }; }, //原生javascript加入收藏夹 AddFavorite: function(sURL, sTitle) { try { window.external.addFavorite(sURL, sTitle) } catch (e) { try { window.sidebar.addPanel(sTitle, sURL, "") } catch (e) { alert("加入收藏失败,请使用Ctrl+D进行添加") } } }, // 原生 JavaScript 实现字符串长度截取 Cutstr: function(str, len) { var temp; var icount = 0; var patrn = /[^\x00-\xff]/; var strre = ""; for (var i = 0; i < str.length; i++) { if (icount < len - 1) { temp = str.substr(i, 1); if (patrn.exec(temp) == null) { icount = icount + 1 } else { icount = icount + 2 } strre += temp } else { break } } return strre + "..." } }