前言
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因为工作中经常用到这些方法,所有便把这些方法进行了总结。
JavaScript
1. type 类型判断
- isString (o) { //是否字符串
- return Object.prototype.toString.call(o).slice(8, -1) === 'String'
- }
- isNumber (o) { //是否数字
- return Object.prototype.toString.call(o).slice(8, -1) === 'Number'
- }
- isObj (o) { //是否对象
- return Object.prototype.toString.call(o).slice(8, -1) === 'Object'
- }
- isArray (o) { //是否数组
- return Object.prototype.toString.call(o).slice(8, -1) === 'Array'
- }
- isDate (o) { //是否时间
- return Object.prototype.toString.call(o).slice(8, -1) === 'Date'
- }
- isBoolean (o) { //是否boolean
- return Object.prototype.toString.call(o).slice(8, -1) === 'Boolean'
- }
- isFunction (o) { //是否函数
- return Object.prototype.toString.call(o).slice(8, -1) === 'Function'
- }
- isNull (o) { //是否为null
- return Object.prototype.toString.call(o).slice(8, -1) === 'Null'
- }
- isUndefined (o) { //是否undefined
- return Object.prototype.toString.call(o).slice(8, -1) === 'Undefined'
- }
- isFalse (o) {
- if (!o || o === 'null' || o === 'undefined' || o === 'false' || o === 'NaN') return true
- return false
- }
- isTrue (o) {
- return !this.isFalse(o)
- }
- isIos () {
- var u = navigator.userAgent;
- if (u.indexOf('Android') > -1 || u.indexOf('Linux') > -1) {//安卓手机
- // return "Android";
- return false
- } else if (u.indexOf('iPhone') > -1) {//苹果手机
- // return "iPhone";
- return true
- } else if (u.indexOf('iPad') > -1) {//iPad
- // return "iPad";
- return false
- } else if (u.indexOf('Windows Phone') > -1) {//winphone手机
- // return "Windows Phone";
- return false
- }else{
- return false
- }
- }
- isPC () { //是否为PC端
- var userAgentInfo = navigator.userAgent;
- var Agents = ["Android", "iPhone",
- "SymbianOS", "Windows Phone",
- "iPad", "iPod"];
- var flag = true;
- for (var v = 0; v < Agents.length; v++) {
- if (userAgentInfo.indexOf(Agents[v]) > 0) {
- flag = false;
- break;
- }
- }
- return flag;
- }
- browserType(){
- var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
- var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Opera浏览器
- var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器
- var isEdge = userAgent.indexOf("Edge") > -1; //判断是否IE的Edge浏览器
- var isFF = userAgent.indexOf("Firefox") > -1; //判断是否Firefox浏览器
- var isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") == -1; //判断是否Safari浏览器
- var isChrome = userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("Safari") > -1; //判断Chrome浏览器
- if (isIE) {
- var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
- reIE.test(userAgent);
- var fIEVersion = parseFloat(RegExp["$1"]);
- if(fIEVersion == 7) return "IE7"
- else if(fIEVersion == 8) return "IE8";
- else if(fIEVersion == 9) return "IE9";
- else if(fIEVersion == 10) return "IE10";
- else if(fIEVersion == 11) return "IE11";
- else return "IE7以下"//IE版本过低
- }
- if (isFF) return "FF";
- if (isOpera) return "Opera";
- if (isEdge) return "Edge";
- if (isSafari) return "Safari";
- if (isChrome) return "Chrome";
- }
- checkStr (str, type) {
- switch (type) {
- case 'phone': //手机号码
- return /^1[3|4|5|7|8][0-9]{9}$/.test(str);
- case 'tel': //座机
- return /^(0\d{2,3}-\d{7,8})(-\d{1,4})?$/.test(str);
- case 'card': //身份证
- return /^\d{15}|\d{18}$/.test(str);
- case 'pwd': //密码以字母开头,长度在6~18之间,只能包含字母、数字和下划线
- return /^[a-zA-Z]\w{5,17}$/.test(str)
- case 'postal': //邮政编码
- return /[1-9]\d{5}(?!\d)/.test(str);
- case 'QQ': //QQ号
- return /^[1-9][0-9]{4,9}$/.test(str);
- case 'email': //邮箱
- return /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.test(str);
- case 'money': //金额(小数点2位)
- return /^\d*(?:\.\d{0,2})?$/.test(str);
- case 'URL': //网址
- return /(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/.test(str)
- case 'IP': //IP
- return /((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))/.test(str);
- case 'date': //日期时间
- return /^(\d{4})\-(\d{2})\-(\d{2}) (\d{2})(?:\:\d{2}|:(\d{2}):(\d{2}))$/.test(str) || /^(\d{4})\-(\d{2})\-(\d{2})$/.test(str)
- case 'number': //数字
- return /^[0-9]$/.test(str);
- case 'english': //英文
- return /^[a-zA-Z]+$/.test(str);
- case 'chinese': //中文
- return /^[\u4E00-\u9FA5]+$/.test(str);
- case 'lower': //小写
- return /^[a-z]+$/.test(str);
- case 'upper': //大写
- return /^[A-Z]+$/.test(str);
- case 'HTML': //HTML标记
- return /<("[^"]*"|'[^']*'|[^'">])*>/.test(str);
- default:
- return true;
- }
- }
2. Date
- /**
- * 格式化时间
- *
- * @param {time} 时间
- * @param {cFormat} 格式
- * @return {String} 字符串
- *
- * @example formatTime('2018-1-29', '{y}/{m}/{d} {h}:{i}:{s}') // -> 2018/01/29 00:00:00
- */
- formatTime(time, cFormat) {
- if (arguments.length === 0) return null
- if ((time + '').length === 10) {
- time = +time * 1000
- }
- var format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}', date
- if (typeof time === 'object') {
- date = time
- } else {
- date = new Date(time)
- }
- var formatObj = {
- y: date.getFullYear(),
- m: date.getMonth() + 1,
- d: date.getDate(),
- h: date.getHours(),
- i: date.getMinutes(),
- s: date.getSeconds(),
- a: date.getDay()
- }
- var time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
- var value = formatObj[key]
- if (key === 'a') return ['一', '二', '三', '四', '五', '六', '日'][value - 1]
- if (result.length > 0 && value < 10) {
- value = '0' + value
- }
- return value || 0
- })
- return time_str
- }
- /**
- * 返回指定长度的月份集合
- *
- * @param {time} 时间
- * @param {len} 长度
- * @param {direction} 方向: 1: 前几个月; 2: 后几个月; 3:前后几个月 默认 3
- * @return {Array} 数组
- *
- * @example getMonths('2018-1-29', 6, 1) // -> ["2018-1", "2017-12", "2017-11", "2017-10", "2017-9", "2017-8", "2017-7"]
- */
- getMonths(time, len, direction) {
- var mm = new Date(time).getMonth(),
- yy = new Date(time).getFullYear(),
- direction = isNaN(direction) ? 3 : direction,
- index = mm;
- var cutMonth = function(index) {
- if ( index <= len && index >= -len) {
- return direction === 1 ? formatPre(index).concat(cutMonth(++index)):
- direction === 2 ? formatNext(index).concat(cutMonth(++index)):formatCurr(index).concat(cutMonth(++index))
- }
- return []
- }
- var formatNext = function(i) {
- var y = Math.floor(i/12),
- m = i%12
- return [yy+y + '-' + (m+1)]
- }
- var formatPre = function(i) {
- var y = Math.ceil(i/12),
- m = i%12
- m = m===0 ? 12 : m
- return [yy-y + '-' + (13 - m)]
- }
- var formatCurr = function(i) {
- var y = Math.floor(i/12),
- yNext = Math.ceil(i/12),
- m = i%12,
- mNext = m===0 ? 12 : m
- return [yy-yNext + '-' + (13 - mNext),yy+y + '-' + (m+1)]
- }
- // 数组去重
- var unique = function(arr) {
- if ( Array.hasOwnProperty('from') ) {
- return Array.from(new Set(arr));
- }else{
- var n = {},r=[];
- for(var i = 0; i < arr.length; i++){
- if (!n[arr[i]]){
- n[arr[i]] = true;
- r.push(arr[i]);
- }
- }
- return r;
- }
- }
- return direction !== 3 ? cutMonth(index) : unique(cutMonth(index).sort(function(t1, t2){
- return new Date(t1).getTime() - new Date(t2).getTime()
- }))
- }
- /**
- * 返回指定长度的天数集合
- *
- * @param {time} 时间
- * @param {len} 长度
- * @param {direction} 方向: 1: 前几天; 2: 后几天; 3:前后几天 默认 3
- * @return {Array} 数组
- *
- * @example date.getDays('2018-1-29', 6) // -> ["2018-1-26", "2018-1-27", "2018-1-28", "2018-1-29", "2018-1-30", "2018-1-31", "2018-2-1"]
- */
- getDays(time, len, diretion) {
- var tt = new Date(time)
- var getDay = function(day) {
- var t = new Date(time)
- t.setDate(t.getDate() + day)
- var m = t.getMonth()+1
- return t.getFullYear()+'-'+m+'-'+t.getDate()
- }
- var arr = []
- if (diretion === 1) {
- for (var i = 1; i <= len; i++) {
- arr.unshift(getDay(-i))
- }
- }else if(diretion === 2) {
- for (var i = 1; i <= len; i++) {
- arr.push(getDay(i))
- }
- }else {
- for (var i = 1; i <= len; i++) {
- arr.unshift(getDay(-i))
- }
- arr.push(tt.getFullYear()+'-'+(tt.getMonth()+1)+'-'+tt.getDate())
- for (var i = 1; i <= len; i++) {
- arr.push(getDay(i))
- }
- }
- return diretion === 1 ? arr.concat([tt.getFullYear()+'-'+(tt.getMonth()+1)+'-'+tt.getDate()]) :
- diretion === 2 ? [tt.getFullYear()+'-'+(tt.getMonth()+1)+'-'+tt.getDate()].concat(arr) : arr
- }
- /**
- * @param {s} 秒数
- * @return {String} 字符串
- *
- * @example formatHMS(3610) // -> 1h0m10s
- */
- formatHMS (s) {
- var str = ''
- if (s > 3600) {
- str = Math.floor(s/3600)+'h'+Math.floor(s%3600/60)+'m'+s%60+'s'
- }else if(s > 60) {
- str = Math.floor(s/60)+'m'+s%60+'s'
- }else{
- str = s%60+'s'
- }
- return str
- }
- /*获取某月有多少天*/
- getMonthOfDay (time) {
- var date = new Date(time)
- var year = date.getFullYear()
- var mouth = date.getMonth() + 1
- var days
- //当月份为二月时,根据闰年还是非闰年判断天数
- if (mouth == 2) {
- days = year % 4 == 0 ? 29 : 28
- } else if (mouth == 1 || mouth == 3 || mouth == 5 || mouth == 7 || mouth == 8 || mouth == 10 || mouth == 12) {
- //月份为:1,3,5,7,8,10,12 时,为大月.则天数为31;
- days = 31
- } else {
- //其他月份,天数为:30.
- days = 30
- }
- return days
- }
- /*获取某年有多少天*/
- getYearOfDay (time) {
- var firstDayYear = this.getFirstDayOfYear(time);
- var lastDayYear = this.getLastDayOfYear(time);
- var numSecond = (new Date(lastDayYear).getTime() - new Date(firstDayYear).getTime())/1000;
- return Math.ceil(numSecond/(24*3600));
- }
- /*获取某年的第一天*/
- getFirstDayOfYear (time) {
- var year = new Date(time).getFullYear();
- return year + "-01-01 00:00:00";
- }
- /*获取某年最后一天*/
- getLastDayOfYear (time) {
- var year = new Date(time).getFullYear();
- var dateString = year + "-12-01 00:00:00";
- var endDay = this.getMonthOfDay(dateString);
- return year + "-12-" + endDay + " 23:59:59";
- }
- /*获取某个日期是当年中的第几天*/
- getDayOfYear (time) {
- var firstDayYear = this.getFirstDayOfYear(time);
- var numSecond = (new Date(time).getTime() - new Date(firstDayYear).getTime())/1000;
- return Math.ceil(numSecond/(24*3600));
- }
- /*获取某个日期在这一年的第几周*/
- getDayOfYearWeek (time) {
- var numdays = this.getDayOfYear(time);
- return Math.ceil(numdays / 7);
- }
3. Array
- /*判断一个元素是否在数组中*/
- contains (arr, val) {
- return arr.indexOf(val) != -1 ? true : false;
- }
- /**
- * @param {arr} 数组
- * @param {fn} 回调函数
- * @return {undefined}
- */
- each (arr, fn) {
- fn = fn || Function;
- var a = [];
- var args = Array.prototype.slice.call(arguments, 1);
- for(var i = 0; i < arr.length; i++) {
- var res = fn.apply(arr, [arr[i], i].concat(args));
- if(res != null) a.push(res);
- }
- }
- /**
- * @param {arr} 数组
- * @param {fn} 回调函数
- * @param {thisObj} this指向
- * @return {Array}
- */
- map (arr, fn, thisObj) {
- var scope = thisObj || window;
- var a = [];
- for(var i = 0, j = arr.length; i < j; ++i) {
- var res = fn.call(scope, arr[i], i, this);
- if(res != null) a.push(res);
- }
- return a;
- }
- /**
- * @param {arr} 数组
- * @param {type} 1:从小到大 2:从大到小 3:随机
- * @return {Array}
- */
- sort (arr, type = 1) {
- return arr.sort( (a, b) => {
- switch(type) {
- case 1:
- return a - b;
- case 2:
- return b - a;
- case 3:
- return Math.random() - 0.5;
- default:
- return arr;
- }
- })
- }
- /*去重*/
- unique (arr) {
- if ( Array.hasOwnProperty('from') ) {
- return Array.from(new Set(arr));
- }else{
- var n = {},r=[];
- for(var i = 0; i < arr.length; i++){
- if (!n[arr[i]]){
- n[arr[i]] = true;
- r.push(arr[i]);
- }
- }
- return r;
- }
- }
- /*求两个集合的并集*/
- union (a, b) {
- var newArr = a.concat(b);
- return this.unique(newArr);
- }
- /*求两个集合的交集*/
- intersect (a, b) {
- var _this = this;
- a = this.unique(a);
- return this.map(a, function(o) {
- return _this.contains(b, o) ? o : null;
- });
- }
- /*删除其中一个元素*/
- remove (arr, ele) {
- var index = arr.indexOf(ele);
- 网页名称:Javascript总结(常用工具类的封装)
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