这里有新鲜出炉的 Javascript 教程,程序狗速度看过来!
Javascript 是一种由 Netscape 的 LiveScript 发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言,主要目的是为了解决服务器端语言,比如 Perl,遗留的速度问题,为客户提供更流畅的浏览效果。
下面小编就为大家带来一篇常用 Javascript 函数与原型功能收藏 (必看篇)。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧
如下所示:
- // 重复字符串
- String.prototype.repeat = function(n) {
- return new Array(n + 1).join(this);
- }
- // 替换全部
- String.prototype.replaceAll = function(str1, str2) {
- return this.replace(new RegExp(str1, "gm"), str2);
- }
- // 清除空格
- String.prototype.trim = function() {
- return this.replace(/^\s*(.*?)\s+$/, "$1");
- }
- // 计算数组中的最大值
- Array.prototype.max = function() {
- return Math.max.apply({},
- this);
- }
- // 计算数组中的最小值
- Array.prototype.min = function() {
- return Math.min.apply({},
- this);
- }
- // 复制数组
- Array.prototype.copy = function() {
- return [].concat(this);
- };
- // 去除数组中指定元素,只能去除一个,如果想多个,之前先用unique处理
- Array.prototype.remove = function(value) {
- for (var i = 0,
- len = this.length; i < len; i++) {
- if (this[i] == value) {
- this.splice(i, 1);
- break;
- }
- }
- return this;
- }
- // 判断数组中是否存在指定元素,返回索引值
- Array.prototype.inArray = function(value) {
- var index = -1,
- key;
- for (key in this) {
- if (this[key] == value) {
- index = key;
- break;
- }
- }
- return index;
- }
- // 去除数组中的重复元素
- Array.prototype.unique = function() {
- var key, ret = [];
- for (key in this) {
- if (ret.inArray(this[key]) < 0) {
- ret.push(this[key]);
- }
- }
- return ret;
- }
- // 检测是否已经安装flash,检测flash的版本
- var flashVersion = (function() {
- var version;
- try {
- version = navigator.plugins['Shockwave Flash'];
- version = version.description;
- } catch(ex) {
- try {
- version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
- } catch(ex2) {
- version = '0.0';
- }
- }
- version = version.match(/\d+/g);
- return parseFloat(version[0] + '.' + version[1], 10);
- })();
- // 检测是否支持transition
- var supportTransition = (function() {
- var s = document.createElement('p').style,
- r = 'transition' in s || 'WebkitTransition' in s || 'MozTransition' in s || 'msTransition' in s || 'OTransition' in s;
- s = null;
- return r;
- })();
- // 判断浏览器是否支持图片的base64
- var isSupportBase64 = (function() {
- var data = new Image();
- var support = true;
- data.onload = data.onerror = function() {
- if (this.width != 1 || this.height != 1) {
- support = false;
- }
- return support;
- };
- data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
- })();
- // 首字母大写
- function ucfirst(str) {
- return str.charAt(0).toUpperCase() + str.slice(1);
- }
- // 清除左空格
- function ltrim(str) {
- return str.replace(/^(\s*|*)/, "");
- }
- // 清除右空格
- function rtrim(str) {
- return str.replace(/(\s*|*)$/, "");
- }
- // 设置Cookie值
- function setCookie(name, value, hours, path, domain) {
- var d = new Date();
- var offset = 8;
- var utc = d.getTime() + (d.getTimezoneOffset() * 60000);
- var nd = utc + (3600000 * offset);
- var expire = new Date(nd);
- expire.setTime(expire.getTime() + hours * 60 * 60 * 1000);
- var path = path || "";
- var domain = domain || "";
- document.cookie = name + "=" + escape(value) + ";path=" + path + ";expires=" + expire.toGMTString() + ";domain=" + domain + ";"
- }
- // 获取Cookie值
- function getCookie(name) {
- var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
- if (arr != null) {
- return unescape(arr[2]);
- }
- return null;
- }
- // 删除Cookie值
- function removeCookie(name) {
- setCookie(name, "", -1);
- }
- // 生成范围随机数
- function rand(n, m) {
- return Math.random() * (m - n) + n;
- }
- // 加入收藏夹
- function addFavorite(url, title) {
- try {
- window.external.addFavorite(url, title);
- } catch(e) {
- try {
- window.sidebar.addPanel(title, url, "");
- } catch(e) {
- alert("加入收藏失败,请使用Ctrl+D进行添加");
- }
- }
- }
- // 设为首页
- function setHomepage(url) {
- if (document.all) {
- document.body.style.behavior = 'url(#default#homepage)';
- document.body.setHomePage(url);
- } else if (window.sidebar) {
- if (window.netscape) {
- try {
- netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
- } catch(e) {
- alert("该操作被浏览器拒绝,如果想启用该功能,请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true");
- }
- }
- var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
- prefs.setCharPref('browser.startup.homepage', url);
- }
- }
- // 加载样式文件
- function loadStyle(url) {
- try {
- document.createStyleSheet(url);
- } catch(e) {
- var cssLink = document.createElement('link');
- cssLink.rel = 'stylesheet';
- cssLink.type = 'text/css';
- cssLink.href = url;
- var head = document.getElementsByTagName('head')[0];
- head.appendChild(cssLink)
- }
- }
- // 清除脚本内容
- function stripscript(str) {
- return str.replace(/<script.*?>.*?<\/script>/ig, '');
- }
- // 检验URL链接是否有效
- function getUrlState(url) {
- var xmlhttp = new ActiveXObject("microsoft.xmlhttp");
- xmlhttp.open("GET", url, false);
- try {
- xmlhttp.send();
- } catch(e) {
- } finally {
- var result = xmlhttp.responseText;
- if (result) {
- if (xmlhttp.status == 200) {
- return true;
- } else {
- return false;
- }
- } else {
- return false;
- }
- }
- }
- // 格式化CSS代码
- function formatCss(str) {
- str = str.replace(/\s*([\{\}\:\;\,])\s*/g, "$1");
- str = str.replace(/;\s*;/g, ";"); //清除连续分号
- str = str.replace(/\,[\s\.\#\d]*{/g, "{");
- str = str.replace(/([^\s])\{([^\s])/g, "$1 {\n\t$2");
- str = str.replace(/([^\s])\}([^\n]*)/g, "$1\n}\n$2");
- str = str.replace(/([^\s]);([^\s\}])/g, "$1;\n\t$2");
- return str;
- }
- // 压缩CSS代码
- function compressCss(str) {
- str = str.replace(/\/\*(.|\n)*?\*\//g, ""); //删除注释
- str = str.replace(/\s*([\{\}\:\;\,])\s*/g, "$1");
- str = str.replace(/\,[\s\.\#\d]*\{/g, "{"); //容错处理
- str = str.replace(/;\s*;/g, ";"); //清除连续分号
- str = str.match(/^\s*(\S+(\s+\S+)*)\s*$/); //去掉首尾空白
- return (str == null) ? "": s[1];
- }
- // getElementsByClassName
- function getElementsByClassName(name, context) {
- var context = context || document;
- if (context.getElementsByClassName) {
- return context.getElementsByClassName(name);
- }
- var nodes = context.getElementsByTagName("*"),
- nodesLength = nodes.length,
- ret = [];
- for (var i = 0; i < nodesLength; i++) {
- var className = nodes[i].className;
- if (nodes[i].nodeType == 1 && className) {
- var classes = className.split(' ');
- for (var j = 0; j < classes.length; j++) {
- if (name == classes[j]) {
- ret.push(nodes[i]);
- break
- }
- }
- }
- }
- return ret;
- }
- // 获取页面高度
- function getPageHeight() {
- var doc = document;
- var rot = doc.compatMode == "BackCompat" ? doc.body: doc.documentElement;
- return Math.max(doc.documentElement.scrollHeight, doc.body.scrollHeight, rot.clientHeight);
- }
- // 获取页面scrollLeft
- function getPageScrollLeft() {
- var doc = document;
- return doc.documentElement.scrollLeft || doc.body.scrollLeft;
- }
- // 获取页面可视宽度
- function getPageViewWidth() {
- var doc = document;
- var rot = doc.compatMode == "BackCompat" ? doc.body: doc.documentElement;
- return rot.clientWidth;
- }
- // 获取页面宽度
- function getPageWidth() {
- var doc = document;
- var rot = doc.compatMode == "BackCompat" ? doc.body: doc.documentElement;
- return Math.max(doc.documentElement.scrollWidth, doc.body.scrollWidth, rot.clientWidth);
- }
- // 获取页面scrollTop
- function getPageScrollTop() {
- var doc = document;
- return doc.documentElement.scrollTop || doc.body.scrollTop;
- }
- // 获取页面可视高度
- function getPageViewHeight() {
- var doc = document;
- var rot = doc.compatMode == "BackCompat" ? doc.body: doc.documentElement;
- return rot.clientHeight;
- }
- // 获取网页被卷去的位置
- function getScrollXY() {
- return document.body.scrollTop ? {
- x: document.body.scrollLeft,
- y: document.body.scrollTop
- }: {
- x: document.documentElement.scrollLeft,
- y: document.documentElement.scrollTop
- }
- }
- // 获取元素的样式值
- function getStyle(elem, name) {
- if (elem.style[name]) {
- return elem.style[name];
- } else if (elem.currentStyle) {
- return elem.currentStyle[name];
- } else if (document.defaultView && document.defaultView.getComputedStyle) {
- var s = document.defaultView.getComputedStyle(elem, "");
- return s && s.getPropertyValue(name);
- } else {
- return null;
- }
- }
- // 获取元素相对于这个页面的X坐标
- function pageX(elem) {
- return elem.offsetParent ? (elem.offsetLeft + pageX(elem.offsetParent)) : elem.offsetLeft;
- }
- // 获取元素相对于这个页面的Y坐标
- function pageY(elem) {
- return elem.offsetParent ? (elem.offsetTop + pageY(elem.offsetParent)) : elem.offsetTop;
- }
- // 获取元素相对于父元素的X坐标
- function parentX(elem) {
- return elem.parentNode == elem.offsetParent ? elem.offsetLeft: pageX(elem) - pageX(elem.parentNode);
- }
- // 获取元素相对于父元素的Y坐标
- function parentY(elem) {
- return elem.parentNode == elem.offsetParent ? elem.offsetTop: pageY(elem) - pageY(elem.parentNode);
- }
- // 获取使用CSS定位的元素的X坐标
- function posX(elem) {
- return parseInt(getStyle(elem, "left"));
- }
- // 获取使用CSS定位的元素的Y坐标
- function posY(elem) {
- return parseInt(getStyle(elem, "top"));
- }
- // 设置元素X位置
- function setX(elem, pos) {
- elem.style.left = pos + "px";
- }
- // 设置元素Y位置
- function setY(elem, pos) {
- elem.style.top = pos + "px";
- }
- // 增加元素X坐标
- function addX(elem, pos) {
- set(elem, (posX(elem) + pos));
- }
- // 增加元素Y坐标
- function addY(elem, pos) {
- set(elem, (posY(elem) + pos));
- }
- // 获取元素使用CSS控制大小的高度
- function getHeight(elem) {
- return parseInt(getStyle(elem, "height"));
- }
- // 获取元素使用CSS控制大小的宽度
- function getWidth(elem) {
- return parseInt(getStyle(elem, "width"));
- }
- // 设置透明度
- function setOpacity(elem, num) {
- if (elem.filters) {
- elem.style.filter = "alpha(opacity=" + num + ")";
- } else {
- elem.style.opacity = num / 100;
- }
- }
- // 获取鼠标光标相对于整个页面的X位置
- function getX(e) {
- e = e || window.event;
- return e.pageX || e.clientX + document.body.scrollLeft;
- }
- // 获取鼠标光标相对于整个页面的Y位置
- function getY(e) {
- e = e || window.event;
- return e.pageY || e.clientY + document.body.scrollTop;
- }
- // 获取鼠标光标相对于当前元素的X位置
- function getElementX(e) {
- return (e && e.layerX) || window.event.offsetX;
- }
- // 获取鼠标光标相对于当前元素的Y位置
- function getElementY(e) {
- return (e && e.layerY) || window.event.offsetY;
- }
- // 获取滚动条的X位置
- function scrollX() {
- var de = document.documentElement;
- return self.pageXOffset || (de && de.scrollLeft) || document.body.scrollLeft;
- }
- // 获取滚动条的Y位置
- function scrollY() {
- var de = document.documentElement;
- return self.pageYOffset || (de && de.scrollTop) || document.body.scrollTop;
- }
- // 确认是否键盘有效输入值
- function checkKey(iKey) {
- if (iKey == 32 || iKey == 229) {
- return true;
- }
- /*空格和异常*/
- if (iKey > 47 && iKey < 58) {
- return true;
- }
- /*数字*/
- if (iKey > 64 && iKey < 91) {
- return true;
- }
- /*字母*/
- if (iKey > 95 && iKey < 108) {
- return true;
- }
- /*数字键盘1*/
- if (iKey > 108 && iKey < 112) {
- return true;
- }
- /*数字键盘2*/
- if (iKey > 185 && iKey < 193) {
- return true;
- }
- /*符号1*/
- if (iKey > 218 && iKey < 223) {
- return true;
- }
- /*符号2*/
- return false;
- }
- // 获得URL中GET参数值
- function getParams() {
- var queryStr = window.location.href.split("?");
- var params = [];
- if (queryStr[1]) {
- var gets = queryStr[1].split("&");
- for (var i = 0; i < gets.length; i++) {
- temp = gets.split("=");
- params[temp[0]] = temp[1];
- }
- }
- return params;
- }
- // 字符串反序
- function strReverse(text) {
- return text.split('').reverse().join('');
- }
- // HTML实体
- function htmlEncode(str) {
- var s = "";
- if (str.length == 0) return "";
- s = str.replace(/\&/g, "&");
- s = s.replace(/</g, "<");
- s = s.replace(/>/g, ">");
- s = s.replace(/\'/g, "'");
- s = s.replace(/\"/g, "&qout;");
- return s;
- }
- // HTML还原
- function htmlDecode(str) {
- var s = "";
- if (str.length == 0) return "";
- s = str.replace(/&/g, "&");
- s = s.replace(/</g, "<");
- s = s.replace(/>/g, ">");
- s = s.replace(/'/g, "\'");
- s = s.replace(/&qout;/g, "\"");
- return s;
- }
- // 克隆
- function clone(obj) {
- var ret;
- switch (typeof obj) {
- case 'undefined':
- break;
- case 'string':
- ret = obj + '';
- break;
- case 'number':
- ret = obj - 0;
- break;
- case 'boolean':
- ret = obj;
- break;
- case 'object':
- if (obj === null) {
- ret = null;
- } else {
- if (obj instanceof Array) {
- ret = [];
- for (var i = 0,
- len = obj.length; i < len; i++) {
- ret.push(clone(obj[i]));
- }
- } else {
- ret = {};
- for (var k in obj) {
- ret[k] = clone(obj[k]);
- }
- }
- }
- break;
- default:
- ret = obj;
- break;
- }
- return ret;
- }
- // 检测变量是否为email格式
- function isEmail(mail) {
- if (/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/.test(mail)) {
- return true;
- }
- return false;
- }
- // 验证身份证号码
- function isIdenCode(code) {
- var city = {
- 11 : "北京",
- 12 : "天津",
- 13 : "河北",
- 14 : "山西",
- 15 : "内蒙古",
- 21 : "辽宁",
- 22 : "吉林",
- 23 : "黑龙江 ",
- 31 : "上海",
- 32 : "江苏",
- 33 : "浙江",
- 34 : "安徽",
- 35 : "福建",
- 36 : "江西",
- 37 : "山东",
- 41 : "河南",
- 42 : "湖北 ",
- 43 : "湖南",
- 44 : "广东",
- 45 : "广西",
- 46 : "海南",
- 50 : "重庆",
- 51 : "四川",
- 52 : "贵州",
- 53 : "云南",
- 54 : "西藏 ",
- 61 : "陕西",
- 62 : "甘肃",
- 63 : "青海",
- 64 : "宁夏",
- 65 : "新疆",
- 71 : "台湾",
- 81 : "香港",
- 82 : "澳门",
- 91 : "国外"
- };
- var tip = "";
- var pass = true;
- if (!code || !/^\d{6}(18|19|20)?\d{2}(0[1-9]|1[012])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i.test(code)) {
- tip = "身份证号格式错误";
- pass = false;
- } else if (!city[code.substr(0, 2)]) {
- tip = "地址编码错误";
- pass = false;
- } else {
- //18位身份证需要验证最后一位校验位
- if (code.length == 18) {
- code = code.split('');
- //∑(ai×Wi)(mod 11)
- //加权因子
- var factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
- //校验位
- var parity = [1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2];
- var sum = 0;
- var ai = 0;
- var wi = 0;
- for (var i = 0; i < 17; i++) {
- ai = code[i];
- wi = factor[i];
- sum += ai * wi;
- }
- var last = parity[sum % 11];
- if (parity[sum % 11] != code[17]) {
- tip = "校验位错误";
- pass = false;
- }
- }
- }
- return pass;
- }
- // 检测变量是否为小数
- function isDecimal(dec) {
- if (dec.match(/^-?\d+(\.\d+)?$/g) == null) {
- return false;
- }
- return true;
- }
- // 检测变量是否为整型
- function isInteger(num) {
- if (num.match(/^[-+]?\d*$/) == null) {
- return false;
- }
- return true;
- }
- // 检测变量是否为时间格式
- function checkTime(str) {
- var time = str.match(/^(\d{1,2})(:)?(\d{1,2})\2(\d{1,2})$/);
- if (time == null) {
- return false;
- }
- if (time[1] > 24 || time[3] > 60 || time[4] > 60) {
- return false
- }
- return true;
- }
- // 检测变量类型是否为日期格式
- function checkDate(str) {
- var date = str.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
- if (date == null) {
- return false;
- }
- var d = new Date(r[1], r[3] - 1, r[4]);
- return (d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4]);
- }
- // 检测变量是否为长日期格式
- function checkDateTime(str) {
- var reg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
- var dt = str.match(reg);
- if (dt == null) {
- return false;
- }
- var d = new Date(dt[1], dt[3] - 1, dt[4], dt[5], dt[6], dt[7]);
- return (d.getFullYear() == dt[1] && (d.getMonth() + 1) == dt[3] && d.getDate() == dt[4] && d.getHours() == dt[5] && d.getMinutes() == dt[6] && d.getSeconds() == dt[7]);
- }
- // 检测变量是否为未定义
- function isUndefined(val) {
- return typeof val === 'undefined';
- }
- // 检测变量是否为定义
- function isDefined(val) {
- return typeof val !== 'undefined';
- }
- // 检测变量类型是否为对象
- function isObject(val) {
- return val !== null && typeof val === 'object';
- }
- // 检测变量类型是否为空对象
- function isBlankObject(val) {
- return val !== null && typeof val === 'object' && !Object.getPrototypeOf(val);
- }
- // 检测变量类型是否为字符串
- function isString(val) {
- return typeof val === 'string';
- }
- // 检测变量类型是否为数字
- function isNumber(val) {
- return typeof val === 'number';
- }
- // 检测变量类型是否为日期
- function isDate(val) {
- return toString.call(val) === '[object Date]';
- }
- // 检测变量类型是否为函数
- function isFunction(val) {
- return typeof val === 'function';
- }
- // 检测变量类型是否为正则表达式
- function isRegExp(val) {
- return toString.call(val) === '[object RegExp]';
- }
- // 检测变量是否window窗体对象
- function isWindow(obj) {
- return obj && obj.window === obj;
- }
- // 检测变量类型是否为布尔
- function isBoolean(val) {
- return typeof val === 'boolean';
- }
- // 检测变量类型是否为文件对象
- function isFile(obj) {
- return toString.call(obj) === '[object File]';
- }
- // 检测变量类型是否为表单对象
- function isFormData(obj) {
- return toString.call(obj) === '[object FormData]';
- }
- // 检测变量类型是否为二进制对象
- function isBlob(obj) {
- return toString.call(obj) === '[object Blob]';
- }
- // 转全角字符
- function toDBC(str) {
- var result = "";
- var len = str.length;
- for (var i = 0; i < len; i++) {
- var code = str.charCodeAt(i);
- //全角与半角相差(除空格外):65248(十进制)
- code = (code >= 0x0021 && code <= 0x007E) ? (code + 65248) : code;
- //处理空格
- code = (code == 0x0020) ? 0x03000: code;
- result += String.fromCharCode(code);
- }
- return result;
- }
- // 转半角字符
- function toSBC(str) {
- var result = "";
- var len = str.length;
- for (var i = 0; i < len; i++) {
- var code = str.charCodeAt(i);
- //全角与半角相差(除空格外):65248(十进制)
- code = (code >= 0xFF01 && code <= 0xFF5E) ? (code - 65248) : code;
- //处理空格
- code = (code == 0x03000) ? 0x0020: code;
- result += String.fromCharCode(code);
- }
- return result;
- }
- // 全角半角转换
- // angle: 0全到半,1半到全,其他不转化
- function chgAngle(str, angle) {
- if (typeof str != "string" || str.length <= 0 || !(angle === 0 || angle == 1)) {
- return str;
- }
- var i, len, ret = [],
- code;
- if (angle) {
- /*半->全*/
- for (i = 0, len = str.length; i < len; i++) {
- code = str.charCodeAt(i);
- if (code == 32) {
- code = 12288;
- } else if (code < 127) {
- code += 65248;
- }
- ret.push(String.fromCharCode(code));
- }
- } else {
- /*全->半*/
- for (i = 0, len = str.length; i < len; i++) {
- code = str.charCodeAt(i);
- if (code == 12288) {
- code = 32;
- } else if (code > 65280 && code < 65375) {
- code -= 65248;
- }
- ret.push(String.fromCharCode(code));
- }
- }
- return ret.join("");
- }
- // 数据的本地化存储
- function makeWebStorage() {
- //IE用userdata实现,w3c浏览器本身支持
- if (("localStorage" in window)) {
- var store = {
- set: function(key, value) {
- localStorage.setItem(key, value)
- },
- get: function(key) {
- return localStorage.getItem(key)
- },
- remove: function(key) {
- return localStorage.removeItem(key)
- }
- }
- } else {
- var store = {
- userData: null,
- name: location.hostname,
- init: function() {
- if (!store.userData) {
- try {
- store.userData = document.createElement('INPUT');
- store.userData.type = "hidden";
- store.userData.style.display = "none";
- store.userData.addBehavior("#default#userData");
- document.body.appendChild(store.userData);
- var expires = new Date();
- expires.setDate(expires.getDate() + 365);
- store.userData.expires = expires.toUTCString();
- } catch(e) {
- return false;
- }
- }
- return true;
- },
- setItem: function(key, value) {
- if (store.init()) {
- store.userData.load(store.name);
- store.userData.setAttribute(key, value);
- store.userData.save(store.name);
- }
- },
- getItem: function(key) {
- if (store.init()) {
- store.userData.load(store.name);
- return store.userData.getAttribute(key);
- }
- },
- remove: function(key) {
- if (store.init()) {
- store.userData.load(store.name);
- store.userData.removeAttribute(key);
- store.userData.save(store.name);
- }
- }
- };
- }
- window.webStorage = store;
- }
- function makeSessionStorage() {
- if (("sessionStorage" in window)) {
- var store = {
- set: function(key, value) {
- window.sessionStorage.setItem(key, value)
- },
- get: function(key) {
- return window.sessionStorage.getItem(key)
- },
- remove: function(key) {
- return window.sessionStorage.removeItem(key)
- }
- }
- } else {
- var store = {
- set: function(key, value) {},
- get: function(key) {},
- remove: function(key) {}
- }
- }
- window.sessStorage = store;
- }
来源: http://www.phperz.com/article/17/0512/331346.html