javascript常用方法函数收集

1 2 3 4 // 小于10补0 function  format(n) {      return  n.toString().replace(/^(\d)$/,  '0$1' ); }

千分位显示，常用于价格显示：

1 2 3 4 // 千分位 function  toThousands(num) {      return  parseFloat(num).toFixed(2).replace(/(\d{1,3})(?=(\d{3})+(?:\.))/g,  "$1," ); }

字符串长度截取

js 代码:

function cutstr(str, len) { var temp, icount = 0, patrn = /[^\x00-\xff]/， 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 + "..."}

替换全部

js 代码:

String.prototype.replaceAll = function(s1, s2) { return this.replace(new RegExp(s1, "gm"), s2)}

清除空格

js 代码:

String.prototype.trim = function() { var reExtraSpace = /^\s*(.*?)\s+$/; return this.replace(reExtraSpace, "$1")}

清除左空格/右空格

js 代码:

function ltrim(s){ return s.replace( /^(\s*|　*)/, ""); } function rtrim(s){ return s.replace( /(\s*|　*)$/, ""); }

判断是否以某个字符串开头

js 代码:

String.prototype.startWith = function (s) { return this.indexOf(s) == 0}

判断是否以某个字符串结束

js 代码:

String.prototype.endWith = function (s) { var d = this.length - s.length; return (d >= 0 && this.lastIndexOf(s) == d)}

转义html标签

js 代码:

function HtmlEncode(text) { return text.replace(/&/g, '&').replace(/\"/g, '"').replace(/</g, '<').replace(/>/g, '>')}

时间日期格式转换

js 代码:

Date.prototype.Format = function(formatStr) { var str = formatStr; var Week = ['日', '一', '二', '三', '四', '五', '六']; str = str.replace(/yyyy|YYYY/, this.getFullYear()); str = str.replace(/yy|YY/, (this.getYear() % 100) > 9 ? (this.getYear() % 100).toString() : '0' + (this.getYear() % 100)); str = str.replace(/MM/, (this.getMonth() + 1) > 9 ? (this.getMonth() + 1).toString() : '0' + (this.getMonth() + 1)); str = str.replace(/M/g, (this.getMonth() + 1)); str = str.replace(/w|W/g, Week[this.getDay()]); str = str.replace(/dd|DD/, this.getDate() > 9 ? this.getDate().toString() : '0' + this.getDate()); str = str.replace(/d|D/g, this.getDate()); str = str.replace(/hh|HH/, this.getHours() > 9 ? this.getHours().toString() : '0' + this.getHours()); str = str.replace(/h|H/g, this.getHours()); str = str.replace(/mm/, this.getMinutes() > 9 ? this.getMinutes().toString() : '0' + this.getMinutes()); str = str.replace(/m/g, this.getMinutes()); str = str.replace(/ss|SS/, this.getSeconds() > 9 ? this.getSeconds().toString() : '0' + this.getSeconds()); str = str.replace(/s|S/g, this.getSeconds()); return str}

判断是否为数字类型

js 代码:

function isDigit(value) { var patrn = /^[0-9]*$/; if (patrn.exec(value) == null || value == "") { return false } else { return true }}

设置cookie值

js 代码:

function setCookie(name, value, Hours) { var d = new Date(); var offset = 8; var utc = d.getTime() + (d.getTimezoneOffset() * 60000); var nd = utc + (3600000 * offset); var exp = new Date(nd); exp.setTime(exp.getTime() + Hours * 60 * 60 * 1000); document.cookie = name + "=" + escape(value) + ";path=/;expires=" + exp.toGMTString() + ";domain=360doc.com;"}

获取cookie值

js 代码:

function getCookie(name) { var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)")); if (arr != null) return unescape(arr[2]); return null}

加入收藏夹

js 代码:

function AddFavorite(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") } }}

设为首页

js 代码:

function setHomepage() { if (document.all) { document.body.style.behavior = 'url(#default#homepage)'; document.body.setHomePage('http://w3cboy.com') } 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', 'http://w3cboy.com') }}

加载样式文件

js 代码:

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) }}

返回脚本内容

js 代码:

function evalscript(s) { if(s.indexOf('<script') == -1) return s; var p = /<script[^\>]*?>([^\x00]*?)<\/script>/ig; var arr = []; while(arr = p.exec(s)) { var p1 = /<script[^\>]*?src=\"([^\>]*?)\"[^\>]*?(reload=\"1\")?(?:charset=\"([\w\-]+?)\")?><\/script>/i; var arr1 = []; arr1 = p1.exec(arr[0]); if(arr1) { appendscript(arr1[1], '', arr1[2], arr1[3]); } else { p1 = /<script(.*?)>([^\x00]+?)<\/script>/i; arr1 = p1.exec(arr[0]); appendscript('', arr1[2], arr1[1].indexOf('reload=') != -1); } } return s;}

清除脚本内容

js 代码:

function stripscript(s) { return s.replace(/<script.*?>.*?<\/script>/ig, '');}

动态加载脚本文件

js 代码:

function appendscript(src, text, reload, charset) { var id = hash(src + text); if(!reload && in_array(id, evalscripts)) return; if(reload && $(id)) { $(id).parentNode.removeChild($(id)); }  evalscripts.push(id); var scriptNode = document.createElement("script"); scriptNode.type = "text/javascript"; scriptNode.id = id; scriptNode.charset = charset ? charset : (BROWSER.firefox ? document.characterSet : document.charset); try { if(src) { scriptNode.src = src; scriptNode.onloadDone = false; scriptNode.onload = function () { scriptNode.onloadDone = true; JSLOADED[src] = 1; }; scriptNode.onreadystatechange = function () { if((scriptNode.readyState == 'loaded' || scriptNode.readyState == 'complete') && !scriptNode.onloadDone) { scriptNode.onloadDone = true; JSLOADED[src] = 1; } }; } else if(text){ scriptNode.text = text; } document.getElementsByTagName('head')[0].appendChild(scriptNode); } catch(e) {}}

返回按ID检索的元素对象

js 代码:

function $(id) { return !id ? null : document.getElementById(id);}

跨浏览器绑定事件

js 代码:

function addEventSamp(obj,evt,fn){ if(!oTarget){return;} if (obj.addEventListener) { obj.addEventListener(evt, fn, false); }else if(obj.attachEvent){ obj.attachEvent('on'+evt,fn); }else{ oTarget["on" + sEvtType] = fn; } }

跨浏览器删除事件

js 代码:

function delEvt(obj,evt,fn){ if(!obj){return;} if(obj.addEventListener){ obj.addEventListener(evt,fn,false); }else if(oTarget.attachEvent){ obj.attachEvent("on" + evt,fn); }else{ obj["on" + evt] = fn; }}

为元素添加on方法

js 代码:

Element.prototype.on = Element.prototype.addEventListener; NodeList.prototype.on = function (event, fn) {、 []['forEach'].call(this, function (el) { el.on(event, fn); }); return this;};

为元素添加trigger方法

js 代码:

Element.prototype.trigger = function (type, data) { var event = document.createEvent('HTMLEvents'); event.initEvent(type, true, true); event.data = data || {}; event.eventName = type; event.target = this; this.dispatchEvent(event); return this;}; NodeList.prototype.trigger = function (event) { []['forEach'].call(this, function (el) { el['trigger'](event); }); return this;};

检验URL链接是否有效

js 代码:

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样式代码

js 代码:

function formatCss(s){//格式化代码 s = s.replace(/\s*([\{\}\:\;\,])\s*/g, "$1"); s = s.replace(/;\s*;/g, ";"); //清除连续分号 s = s.replace(/\,[\s\.\#\d]*{/g, "{"); s = s.replace(/([^\s])\{([^\s])/g, "$1 {\n\t$2"); s = s.replace(/([^\s])\}([^\n]*)/g, "$1\n}\n$2"); s = s.replace(/([^\s]);([^\s\}])/g, "$1;\n\t$2"); return s;}

压缩CSS样式代码

js 代码:

function compressCss (s) {//压缩代码 s = s.replace(/\/\*(.|\n)*?\*\//g, ""); //删除注释 s = s.replace(/\s*([\{\}\:\;\,])\s*/g, "$1"); s = s.replace(/\,[\s\.\#\d]*\{/g, "{"); //容错处理 s = s.replace(/;\s*;/g, ";"); //清除连续分号 s = s.match(/^\s*(\S+(\s+\S+)*)\s*$/); //去掉首尾空白 return (s == null) ? "" : s[1];}

获取当前路径

js 代码:

var currentPageUrl = "";if (typeof this.href === "undefined") { currentPageUrl = document.location.toString().toLowerCase();}else { currentPageUrl = this.href.toString().toLowerCase();}

判断是否移动设备

js 代码:

function isMobile(){ if (typeof this._isMobile === 'boolean'){ return this._isMobile; } var screenWidth = this.getScreenWidth(); var fixViewPortsExperiment = rendererModel.runningExperiments.FixViewport ||rendererModel.runningExperiments.fixviewport; var fixViewPortsExperimentRunning = fixViewPortsExperiment && (fixViewPortsExperiment.toLowerCase() === "new"); if(!fixViewPortsExperiment){ if(!this.isAppleMobileDevice()){ screenWidth = screenWidth/window.devicePixelRatio; } } var isMobileScreenSize = screenWidth < 600; var isMobileUserAgent = false; this._isMobile = isMobileScreenSize && this.isTouchScreen(); return this._isMobile;}

判断是否移动设备访问

js 代码:

function isMobileUserAgent(){ return (/iphone|ipod|android.*mobile|windows.*phone|blackberry.*mobile/i.test(window.navigator.userAgent.toLowerCase()));}

判断是否苹果移动设备访问

js 代码:

function isAppleMobileDevice(){ return (/iphone|ipod|ipad|Macintosh/i.test(navigator.userAgent.toLowerCase()));}

判断是否安卓移动设备访问

js 代码:

function isAndroidMobileDevice(){ return (/android/i.test(navigator.userAgent.toLowerCase()));}

判断是否Touch屏幕

js 代码:

function isTouchScreen(){ return (('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch);}

判断是否打开视窗

js 代码:

function isViewportOpen() { return !!document.getElementById('wixMobileViewport');}

获取移动设备初始化大小

js 代码:

function getInitZoom(){ if(!this._initZoom){ var screenWidth = Math.min(screen.height, screen.width); if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ screenWidth = screenWidth/window.devicePixelRatio; } this._initZoom = screenWidth /document.body.offsetWidth; } return this._initZoom;}

获取移动设备最大化大小

js 代码:

function getZoom(){ var screenWidth = (Math.abs(window.orientation) === 90) ? Math.max(screen.height, screen.width) : Math.min(screen.height, screen.width); if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ screenWidth = screenWidth/window.devicePixelRatio; } var FixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport; var FixViewPortsExperimentRunning = FixViewPortsExperiment && (FixViewPortsExperiment === "New" || FixViewPortsExperiment === "new"); if(FixViewPortsExperimentRunning){ return screenWidth / window.innerWidth; }else{ return screenWidth / document.body.offsetWidth; }}

获取移动设备屏幕宽度

js 代码:

function getScreenWidth(){ var smallerSide = Math.min(screen.width, screen.height); var fixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport; var fixViewPortsExperimentRunning = fixViewPortsExperiment && (fixViewPortsExperiment.toLowerCase() === "new"); if(fixViewPortsExperiment){ if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ smallerSide = smallerSide/window.devicePixelRatio; } } return smallerSide;}

完美判断是否为网址

js 代码:

function IsURL(strUrl) { var regular = /^\b(((https?|ftp):\/\/)?[-a-z0-9]+(\.[-a-z0-9]+)*\.(?:com|edu|gov|int|mil|net|org|biz|info|name|museum|asia|coop|aero|[a-z][a-z]|((25[0-5])|(2[0-4]\d)|(1\d\d)|([1-9]\d)|\d))\b(\/[-a-z0-9_:\@&?=+,.!\/~%\$]*)?)$/i if (regular.test(strUrl)) { return true; }else { return false; }}

getElementsByClassName

js 代码:

function getElementsByClassName(name) { var tags = document.getElementsByTagName('*') || document.all; var els = []; for (var i = 0; i < tags.length; i++) { if (tags.className) { var cs = tags.className.split(' '); for (var j = 0; j < cs.length; j++) { if (name == cs[j]) { els.push(tags); break } } } } return els}

获取页面高度

js 代码:

function getPageHeight(){ var g = document, a = g.body, f = g.documentElement, d = g.compatMode == "BackCompat" ? a : g.documentElement; return Math.max(f.scrollHeight, a.scrollHeight, d.clientHeight);}

获取页面scrollLeft

js 代码:

function getPageScrollLeft(){ var a = document; return a.documentElement.scrollLeft || a.body.scrollLeft;}

获取页面可视宽度

js 代码:

function getPageViewWidth(){ var d = document, a = d.compatMode == "BackCompat" ? d.body : d.documentElement; return a.clientWidth;}

获取页面宽度

js 代码:

function getPageWidth(){ var g = document, a = g.body, f = g.documentElement, d = g.compatMode == "BackCompat" ? a : g.documentElement; return Math.max(f.scrollWidth, a.scrollWidth, d.clientWidth);}

获取页面scrollTop

js 代码:

function getPageScrollTop(){ var a = document; return a.documentElement.scrollTop || a.body.scrollTop;}

获取页面可视高度

js 代码:

function getPageViewHeight() { var d = document, a = d.compatMode == "BackCompat" ? d.body : d.documentElement; return a.clientHeight;}

去掉url前缀

js 代码:

function removeUrlPrefix(a){ a=a.replace(/：/g,":").replace(/．/g,".").replace(/／/g,"/"); while(trim(a).toLowerCase().indexOf("http://")==0){ a=trim(a.replace(/http:\/\//i,"")); } return a;}

随机数时间戳

js 代码:

function uniqueId(){ var a=Math.random,b=parseInt; return Number(new Date()).toString()+b(10*a())+b(10*a())+b(10*a());}

全角半角转换

js 代码:

//iCase: 0全到半，1半到全，其他不转化function chgCase(sStr,iCase){ if(typeof sStr != "string" || sStr.length <= 0 || !(iCase === 0 || iCase == 1)){ return sStr; } var i,oRs=[],iCode; if(iCase){/*半->全*/ for(i=0; i<sStr.length;i+=1){ iCode = sStr.charCodeAt(i); if(iCode == 32){ iCode = 12288; }else if(iCode < 127){ iCode += 65248; } oRs.push(String.fromCharCode(iCode)); } }else{/*全->半*/ for(i=0; i<sStr.length;i+=1){ iCode = sStr.charCodeAt(i); if(iCode == 12288){ iCode = 32; }else if(iCode > 65280 && iCode < 65375){ iCode -= 65248; } oRs.push(String.fromCharCode(iCode)); } } return oRs.join(""); }

确认是否键盘有效输入值

js 代码:

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;}

获取网页被卷去的位置

js 代码:

function getScrollXY() { return document.body.scrollTop ? { x: document.body.scrollLeft, y: document.body.scrollTop }: { x: document.documentElement.scrollLeft, y: document.documentElement.scrollTop }}

日期格式化函数+调用方法

js 代码:

Date.prototype.format = function(format){ var o = { "M+" : this.getMonth()+1, //month "d+" : this.getDate(), //day "h+" : this.getHours(), //hour "m+" : this.getMinutes(), //minute "s+" : this.getSeconds(), //second "q+" : Math.floor((this.getMonth()+3)/3), //quarter "S" : this.getMilliseconds() //millisecond }; if(/(y+)/.test(format)) format=format.replace(RegExp.$1,(this.getFullYear()+"").substr(4 - RegExp.$1.length)); for(var k in o){ if(new RegExp("("+ k +")").test(format)) format = format.replace(RegExp.$1,RegExp.$1.length==1 ? o[k] :("00"+ o[k]).substr((""+ o[k]).length)); } return format;}alert(new Date().format("yyyy-MM-dd hh:mm:ss"));

时间个性化输出功能

js 代码:

/*1、< 60s, 显示为“刚刚”2、>= 1min && < 60 min, 显示与当前时间差“XX分钟前”3、>= 60min && < 1day, 显示与当前时间差“今天 XX:XX”4、>= 1day && < 1year, 显示日期“XX月XX日 XX:XX”5、>= 1year, 显示具体日期“XXXX年XX月XX日 XX:XX”*/function timeFormat(time){ var date = new Date(time), curDate = new Date(), year = date.getFullYear(), month = date.getMonth() + 10, day = date.getDate(), hour = date.getHours(), minute = date.getMinutes(), curYear = curDate.getFullYear(), curHour = curDate.getHours(), timeStr;  if(year < curYear){ timeStr = year +'年'+ month +'月'+ day +'日 '+ hour +':'+ minute; }else{ var pastTime = curDate - date, pastH = pastTime/3600000;  if(pastH > curHour){ timeStr = month +'月'+ day +'日 '+ hour +':'+ minute; }else if(pastH >= 1){ timeStr = '今天 ' + hour +':'+ minute +'分'; }else{ var pastM = curDate.getMinutes() - minute; if(pastM > 1){ timeStr = pastM +'分钟前'; }else{ timeStr = '刚刚'; } } } return timeStr;}

解决offsetX兼容性问题

js 代码:

// 针对火狐不支持offsetX/Yfunction getOffset(e){ var target = e.target, // 当前触发的目标对象 eventCoord, pageCoord, offsetCoord;  // 计算当前触发元素到文档的距离 pageCoord = getPageCoord(target);  // 计算光标到文档的距离 eventCoord = { X : window.pageXOffset + e.clientX, Y : window.pageYOffset + e.clientY };  // 相减获取光标到第一个定位的父元素的坐标 offsetCoord = { X : eventCoord.X - pageCoord.X, Y : eventCoord.Y - pageCoord.Y }; return offsetCoord;} function getPageCoord(element){ var coord = { X : 0, Y : 0 }; // 计算从当前触发元素到根节点为止， // 各级 offsetParent 元素的 offsetLeft 或 offsetTop 值之和 while (element){ coord.X += element.offsetLeft; coord.Y += element.offsetTop; element = element.offsetParent; } return coord;}

常用的正则表达式

js 代码:

//正整数/^[0-9]*[1-9][0-9]*$/;//负整数/^-[0-9]*[1-9][0-9]*$/;//正浮点数/^(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*))$/; //负浮点数/^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$/; //浮点数/^(-?\d+)(\.\d+)?$/;//email地址/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/;//url地址/^[a-zA-z]+://(\w+(-\w+)*)(\.(\w+(-\w+)*))*(\?\S*)?$/;或：^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$ //年/月/日（年-月-日、年.月.日）/^(19|20)\d\d[- /.](0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])$/;//匹配中文字符/[\u4e00-\u9fa5]/;//匹配帐号是否合法(字母开头，允许5-10字节，允许字母数字下划线)/^[a-zA-Z][a-zA-Z0-9_]{4,9}$/;//匹配空白行的正则表达式/\n\s*\r/;//匹配中国邮政编码/[1-9]\d{5}(?!\d)/;//匹配身份证/\d{15}|\d{18}/;//匹配国内电话号码/(\d{3}-|\d{4}-)?(\d{8}|\d{7})?/;//匹配IP地址/((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)/;//匹配首尾空白字符的正则表达式/^\s*|\s*$/;//匹配HTML标记的正则表达式< (\S*?)[^>]*>.*?|< .*? />;//sql 语句^(select|drop|delete|create|update|insert).*$//提取信息中的网络链接(h|H)(r|R)(e|E)(f|F) *= *('|")?(\w|\\|\/|\.)+('|"| *|>)? //提取信息中的邮件地址\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)* //提取信息中的图片链接(s|S)(r|R)(c|C) *= *('|")?(\w|\\|\/|\.)+('|"| *|>)? //提取信息中的 IP 地址(\d+)\.(\d+)\.(\d+)\.(\d+)//取信息中的中国手机号码(86)*0*13\d{9} //提取信息中的中国邮政编码[1-9]{1}(\d+){5} //提取信息中的浮点数（即小数）(-?\d*)\.?\d+ //提取信息中的任何数字(-?\d*)(\.\d+)?//电话区号^0\d{2,3}$//腾讯 QQ 号^[1-9]*[1-9][0-9]*$ //帐号（字母开头，允许 5-16 字节，允许字母数字下划线）^[a-zA-Z][a-zA-Z0-9_]{4,15}$ //中文、英文、数字及下划线^[\u4e00-\u9fa5_a-zA-Z0-9]+$

返回顶部的通用方法

js 代码:

function backTop(btnId) { var btn = document.getElementById(btnId); var d = document.documentElement; var b = document.body; window.onscroll = set; btn.style.display = "none"; btn.onclick = function() { btn.style.display = "none"; window.onscroll = null; this.timer = setInterval(function() { d.scrollTop -= Math.ceil((d.scrollTop + b.scrollTop) * 0.1); b.scrollTop -= Math.ceil((d.scrollTop + b.scrollTop) * 0.1); if ((d.scrollTop + b.scrollTop) == 0) clearInterval(btn.timer, window.onscroll = set); }, 10); }; function set() { btn.style.display = (d.scrollTop + b.scrollTop > 100) ? 'block': "none" }};backTop('goTop');

获得URL中GET参数值

js 代码:

// 用法：如果地址是 test.htm?t1=1&t2=2&t3=3, 那么能取得：GET["t1"], GET["t2"], GET["t3"]function get_get(){ querystr = window.location.href.split("?") if(querystr[1]){ GETs = querystr[1].split("&"); GET = []; for(i=0;i<GETs.length;i++){ tmp_arr = GETs.split("=") key=tmp_arr[0] GET[key] = tmp_arr[1] } } return querystr[1];}

打开一个窗体通用方法

js 代码:

function openWindow(url,windowName,width,height){ var x = parseInt(screen.width / 2.0) - (width / 2.0); var y = parseInt(screen.height / 2.0) - (height / 2.0); var isMSIE= (navigator.appName == "Microsoft Internet Explorer"); if (isMSIE) { var p = "resizable=1,location=no,scrollbars=no,width="; p = p+width; p = p+",height="; p = p+height; p = p+",left="; p = p+x; p = p+",top="; p = p+y; retval = window.open(url, windowName, p); } else { var win = window.open(url, "ZyiisPopup", "top=" + y + ",left=" + x + ",scrollbars=" + scrollbars + ",dialog=yes,modal=yes,width=" + width + ",height=" + height + ",resizable=no" ); eval("try { win.resizeTo(width, height); } catch(e) { }"); win.focus(); }}

提取页面代码中所有网址

js 代码:

var aa = document.documentElement.outerHTML.match(/(url\(|src=|href=)[\"\']*([^\"\'\(\)\<\>\[\] ]+)[\"\'\)]*|(http:\/\/[\w\-\.]+[^\"\'\(\)\<\>\[\] ]+)/ig).join("\r\n").replace(/^(src=|href=|url\()[\"\']*|[\"\'\>\) ]*$/igm,"");alert(aa);

清除相同的数组

js 代码:

String.prototype.unique=function(){ var x=this.split(/[\r\n]+/); var y=''; for(var i=0;i<x.length;i++){ if(!new RegExp("^"+x.replace(/([^\w])/ig,"\\$1")+"$","igm").test(y)){ y+=x+"\r\n" } } return y};

按字母排序，对每行进行数组排序

js 代码:

function SetSort(){ var text=K1.value.split(/[\r\n]/).sort().join("\r\n");//顺序 var test=K1.value.split(/[\r\n]/).sort().reverse().join("\r\n");//反序 K1.value=K1.value!=text?text:test;}

字符串反序

js 代码:

function IsReverse(text){ return text.split('').reverse().join('');}

清除html代码中的脚本

js 代码:

function clear_script(){ K1.value=K1.value.replace(/<script.*?>[\s\S]*?<\/script>|\s+on[a-zA-Z]{3,16}\s?=\s?"[\s\S]*?"|\s+on[a-zA-Z]{3,16}\s?=\s?'[\s\S]*?'|\s+on[a-zA-Z]{3,16}\s?=[^ >]+/ig,"");}动态执行JavaScript脚本 function javascript(){ try{ eval(K1.value); }catch(e){ alert(e.message); }}

动态执行VBScript脚本

js 代码:

function vbscript(){ try{ var script=document.getElementById("K1").value; if(script.trim()=="")return; window.execScript('On Error Resume Next \n'+script+'\n If Err.Number<>0 Then \n MsgBox "请输入正确的VBScript脚本!",48,"脚本错误!" \n End If',"vbscript") }catch(e){ alert(e.message); }}

金额大写转换函数

js 代码:

function transform(tranvalue) { try { var i = 1; var dw2 = new Array("", "万", "亿"); //大单位 var dw1 = new Array("拾", "佰", "仟"); //小单位 var dw = new Array("零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"); //整数部分用 //以下是小写转换成大写显示在合计大写的文本框中 //分离整数与小数 var source = splits(tranvalue); var num = source[0]; var dig = source[1]; //转换整数部分 var k1 = 0; //计小单位 var k2 = 0; //计大单位 var sum = 0; var str = ""; var len = source[0].length; //整数的长度 for (i = 1; i <= len; i++) { var n = source[0].charAt(len - i); //取得某个位数上的数字 var bn = 0; if (len - i - 1 >= 0) { bn = source[0].charAt(len - i - 1); //取得某个位数前一位上的数字 } sum = sum + Number(n); if (sum != 0) { str = dw[Number(n)].concat(str); //取得该数字对应的大写数字，并插入到str字符串的前面 if (n == '0') sum = 0; } if (len - i - 1 >= 0) { //在数字范围内 if (k1 != 3) { //加小单位 if (bn != 0) { str = dw1[k1].concat(str); } k1++; } else { //不加小单位，加大单位 k1 = 0; var temp = str.charAt(0); if (temp == "万" || temp == "亿") //若大单位前没有数字则舍去大单位 str = str.substr(1, str.length - 1); str = dw2[k2].concat(str); sum = 0; } } if (k1 == 3){ //小单位到千则大单位进一 k2++; } } //转换小数部分 var strdig = ""; if (dig != "") { var n = dig.charAt(0); if (n != 0) { strdig += dw[Number(n)] + "角"; //加数字 } var n = dig.charAt(1); if (n != 0) { strdig += dw[Number(n)] + "分"; //加数字 } } str += "元" + strdig; } catch(e) { return "0元"; } return str;}//拆分整数与小数function splits(tranvalue) { var value = new Array('', ''); temp = tranvalue.split("."); for (var i = 0; i < temp.length; i++) { value = temp; } return value;}

resize的操作

js 代码:

(function(){ var fn = function(){ var w = document.documentElement ? document.documentElement.clientWidth : document.body.clientWidth ,r = 1255 ,b = Element.extend(document.body) ,classname = b.className; if(w < r){ //当窗体的宽度小于1255的时候执行相应的操作 }else{ //当窗体的宽度大于1255的时候执行相应的操作 } } if(window.addEventListener){ window.addEventListener('resize', function(){ fn(); }); }else if(window.attachEvent){ window.attachEvent('onresize', function(){ fn(); }); } fn();})();

实现base64解码

js 代码:

function base64_decode(data){ var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; var o1, o2, o3, h1, h2, h3, h4, bits, i = 0,ac = 0,dec = "",tmp_arr = []; if (!data) { return data; } data += ''; do { h1 = b64.indexOf(data.charAt(i++)); h2 = b64.indexOf(data.charAt(i++)); h3 = b64.indexOf(data.charAt(i++)); h4 = b64.indexOf(data.charAt(i++)); bits = h1 << 18 | h2 << 12 | h3 << 6 | h4; o1 = bits >> 16 & 0xff; o2 = bits >> 8 & 0xff; o3 = bits & 0xff; if (h3 == 64) { tmp_arr[ac++] = String.fromCharCode(o1); } else if (h4 == 64) { tmp_arr[ac++] = String.fromCharCode(o1, o2); } else { tmp_arr[ac++] = String.fromCharCode(o1, o2, o3); } } while (i < data.length); dec = tmp_arr.join(''); dec = utf8_decode(dec); return dec;}

实现utf8解码

js 代码:

function utf8_decode(str_data){ var tmp_arr = [],i = 0,ac = 0,c1 = 0,c2 = 0,c3 = 0;str_data += ''; while (i < str_data.length) { c1 = str_data.charCodeAt(i); if (c1 < 128) { tmp_arr[ac++] = String.fromCharCode(c1); i++; } else if (c1 > 191 && c1 < 224) { c2 = str_data.charCodeAt(i + 1); tmp_arr[ac++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63)); i += 2; } else { c2 = str_data.charCodeAt(i + 1); c3 = str_data.charCodeAt(i + 2); tmp_arr[ac++] = String.fromCharCode(((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63)); i += 3; } } return tmp_arr.join('');}

获取窗体可见范围的宽与高

js 代码:

function getViewSize(){ var de=document.documentElement; var db=document.body; var viewW=de.clientWidth==0 ? db.clientWidth : de.clientWidth; var viewH=de.clientHeight==0 ? db.clientHeight : de.clientHeight; return Array(viewW ,viewH);}

断鼠标是否移出事件

js 代码:

function isMouseOut(e, handler) { if (e.type !== 'mouseout') { return false; } var reltg = e.relatedTarget ? e.relatedTarget : e.type === 'mouseout' ? e.toElement : e.fromElement; while (reltg && reltg !== handler) { reltg = reltg.parentNode; } return (reltg !== handler);}

半角转换为全角函数

js 代码:

function ToDBC(str){ var result = ''; for(var i=0; i < str.length; i++){ code = str.charCodeAt(i); if(code >= 33 && code <= 126){ result += String.fromCharCode(str.charCodeAt(i) + 65248); }else if (code == 32){ result += String.fromCharCode(str.charCodeAt(i) + 12288 - 32); }else{ result += str.charAt(i); } } return result;}

全角转换为半角函数

js 代码:

function ToCDB(str){ var result = ''; for(var i=0; i < str.length; i++){ code = str.charCodeAt(i); if(code >= 65281 && code <= 65374){ result += String.fromCharCode(str.charCodeAt(i) - 65248); }else if (code == 12288){ result += String.fromCharCode(str.charCodeAt(i) - 12288 + 32); }else{ result += str.charAt(i); } } return result;} /** * JSFrame Name:EasyJs * File Name:JSFrame * Date:2014-11-28 上午10:50:09 * Copyright (c) 2014, China Link Communications LTD All Rights Reserved. * Author:by sicd * Describe: * Commonly used function of js code * */ /** 1、原生JavaScript实现字符串长度截取 2、原生JavaScript获取域名主机 3、原生JavaScript清除空格 4、原生JavaScript替换全部 5、原生JavaScript转义html标签 6、原生JavaScript还原html标签 7、原生JavaScript时间日期格式转换 8、原生JavaScript判断是否为数字类型 9、原生JavaScript设置cookie值 10、原生JavaScript获取cookie值 11、原生JavaScript加入收藏夹 12、原生JavaScript设为首页 13、原生JavaScript判断IE6 14、原生JavaScript加载样式文件 15、原生JavaScript返回脚本内容 16、原生JavaScript清除脚本内容 17、原生JavaScript动态加载脚本文件 18、原生JavaScript返回按ID检索的元素对象 19、原生JavaScript返回浏览器版本内容 20、原生JavaScript元素显示的通用方法 21、原生JavaScript中有insertBefore方法,可惜却没有insertAfter方法?用如下函数实现 22、原生JavaScript中兼容浏览器绑定元素事件 23、原生JavaScript光标停在文字的后面，文本框获得焦点时调用 24、原生JavaScript检验URL链接是否有效 25、原生JavaScript格式化CSS样式代码 26、原生JavaScript压缩CSS样式代码 27、原生JavaScript获取当前路径 28、原生JavaScriptIP转成整型 29、原生JavaScript整型解析为IP地址 30、原生JavaScript实现checkbox全选与全不选 31、原生JavaScript判断是否移动设备 32、原生JavaScript判断是否移动设备访问 33、原生JavaScript判断是否苹果移动设备访问 34、原生JavaScript判断是否安卓移动设备访问 35、原生JavaScript判断是否Touch屏幕 36、原生JavaScript判断是否在安卓上的谷歌浏览器 37、原生JavaScript判断是否打开视窗 38、原生JavaScript获取移动设备初始化大小 39、原生JavaScript获取移动设备最大化大小 40、原生JavaScript获取移动设备屏幕宽度 41、原生JavaScript完美判断是否为网址 42、原生JavaScript根据样式名称检索元素对象 43、原生JavaScript判断是否以某个字符串开头 44、原生JavaScript判断是否以某个字符串结束 45、原生JavaScript返回IE浏览器的版本号 46、原生JavaScript获取页面高度 47、原生JavaScript获取页面scrollLeft 48、原生JavaScript获取页面可视宽度 49、原生JavaScript获取页面宽度 **/ /** * 字符串长度截取 params: str:字符串 length:长度 */ function cutstr(str, length) { 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 + "..."; } /** * 获取域名主机 params: url:域名 */ function getHost(url) { var host = "null"; if (typeof url == "undefined" || null == url) { url = window.location.href; } var regex = /^\w+\:\/\/([^\/]*).*/; var match = url.match(regex); if (typeof match != "undefined" && null != match) { host = match[1]; } return host; } /** * 清除空格 为String 对象添加方法 trim（） 以此兼容不支持此方法的浏览器 */ if (!String.prototype.trim) { String.prototype.trim = function() { var reExtraSpace = /^\s*(.*?)\s+$/; return this.replace(reExtraSpace, "$1"); }; } /** * 替换全部,多种方式的替换规则 为String 对象添加方法 replaceAll 兼容浏览器 * * 第三参数 修饰符 描述 i 执行对大小写不敏感的匹配。 g 执行全局匹配（查找所有匹配而非在找到第一个匹配后停止）。 m 执行多行匹配。 */ if (!String.prototype.replaceAll) { String.prototype.replaceAll = function(s1, s2, type) { return this.replace(new RegExp(s1, type), s2); }; } /** * 转义html标签 */ function htmlEncode(text) { return text.replace(/&/g, '&').replace(/\"/g, '"').replace(/</g, '<').replace(/>/g, '>'); } /** * 还原html标签 */ function htmlDecode(text) { return text.replace(/&/g, '&').replace(/"/g, '\"').replace( /</g, '<').replace(/>/g, '>'); } /** * 时间日期格式转换 (按需更改，是否调用原方法， 还是重写) */ if (!Date.prototye.format && !Date.prototype.Format) { Date.prototype.Format = function(formatStr) { var str = formatStr; var Week = [ '日', '一', '二', '三', '四', '五', '六' ]; str = str.replace(/yyyy|YYYY/, this.getFullYear()); str = str.replace(/yy|YY/, (this.getYear() % 100) > 9 ? (this.getYear() % 100).toString() : '0' + (this.getYear() % 100)); str = str.replace(/MM/, (this.getMonth() + 1) > 9 ? (this.getMonth() + 1).toString() : '0' + (this.getMonth() + 1)); str = str.replace(/M/g, (this.getMonth() + 1)); str = str.replace(/w|W/g, Week[this.getDay()]); str = str.replace(/dd|DD/, this.getDate() > 9 ? this.getDate() .toString() : '0' + this.getDate()); str = str.replace(/d|D/g, this.getDate()); str = str.replace(/hh|HH/, this.getHours() > 9 ? this.getHours() .toString() : '0' + this.getHours()); str = str.replace(/h|H/g, this.getHours()); str = str.replace(/mm/, this.getMinutes() > 9 ? this.getMinutes() .toString() : '0' + this.getMinutes()); str = str.replace(/m/g, this.getMinutes()); str = str.replace(/ss|SS/, this.getSeconds() > 9 ? this.getSeconds() .toString() : '0' + this.getSeconds()); str = str.replace(/s|S/g, this.getSeconds()); return str; }; } /** * 判断是否为数字类型 */ function isDigit(value) { var patrn = /^[0-9]*$/; if (patrn.exec(value) == null || value == "") { return false; } else { return true; } } /** * 设置cookie值 escape(str) 对值进行编码 unescape(str)进行解码 (ECMAScript v3 反对使用该方法，应用使用 * decodeURI() 和 decodeURIComponent() 替代它。) * * param: * * name:名称 * * value:名称对应值 * * path:为了控制cookie可以访问的目录 例： path=/shop";就表示当前cookie仅能在shop目录下使用（url地址）。 * * expires:过期时间 F * domain : 指定可访问cookie的主机名 域名 */ function setCookie(name, value, Hours) { var d = new Date(); var offset = 8; var utc = d.getTime() + (d.getTimezoneOffset() * 60000); var nd = utc + (3600000 * offset); var exp = new Date(nd); exp.setTime(exp.getTime() + Hours * 60 * 60 * 1000); document.cookie = name + "=" + escape(value) + ";path=/;expires=" + exp.toGMTString() + ";domain=sicd.com;"; } /** * 获取cookie值 unescape()不推荐使用 用 decodeURI() * */ function getCookie(name) { var arr = document.cookie .match(new RegExp("(^| )" + name + "=([^;]*)(;|$)")); if (arr != null) return unescape(arr[2]); return null; } /** * 加入收藏夹 */ function AddFavorite(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"); } } } /** * 设为首页 */ function setHomepage() { if (document.all) { document.body.style.behavior = 'url(#default#homepage)'; document.body.setHomePage('http://***'); } 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', 'http://***'); } } /** * 判断IE6 设置背景图片缓存解决闪烁问题 （ie6默认背景图片不缓存） * * document.execCommand() 用法 想了解的童鞋请访问: * http://www.cnblogs.com/sicd/p/4134641.html 记得点个赞哟 ^_^ */ var ua = navigator.userAgent.toLowerCase(); var isIE6 = ua.indexOf("msie 6") > -1; if (isIE6) { try { document.execCommand("BackgroundImageCache", false, true); } catch (e) { } } /** * 动态加载 CSS 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); } } /** * 返回脚本内容 */ function evalscript(s) { if (s.indexOf('<script') == -1) return s; var p = /<script[^\>]*?>([^\x00]*?)<\/script>/ig; var arr = []; while (arr = p.exec(s)) { var p1 = /<script[^\>]*?src=\"([^\>]*?)\"[^\>]*?(reload=\"1\")?(?:charset=\"([\w\-]+?)\")?><\/script>/i; var arr1 = []; arr1 = p1.exec(arr[0]); if (arr1) { appendscript(arr1[1], '', arr1[2], arr1[3]); } else { p1 = /<script(.*?)>([^\x00]+?)<\/script>/i; arr1 = p1.exec(arr[0]); appendscript('', arr1[2], arr1[1].indexOf('reload=') != -1); } } return s; } /** * 清除脚本内容 */ function stripscript(s) { return s.replace(/<script.*?>.*?<\/script>/ig, ''); } /** * 动态加载脚本文件 */ function appendscript(src, text, reload, charset) { var id = hash(src + text); if (!reload && in_array(id, evalscripts)) return; if (reload && $(id)) { $(id).parentNode.removeChild($(id)); } evalscripts.push(id); var scriptNode = document.createElement("script"); scriptNode.type = "text/javascript"; scriptNode.id = id; scriptNode.charset = charset ? charset : (BROWSER.firefox ? document.characterSet : document.charset); try { if (src) { scriptNode.src = src; scriptNode.onloadDone = false; scriptNode.onload = function() { scriptNode.onloadDone = true; JSLOADED[src] = 1; }; scriptNode.onreadystatechange = function() { if ((scriptNode.readyState == 'loaded' || scriptNode.readyState == 'complete') && !scriptNode.onloadDone) { scriptNode.onloadDone = true; JSLOADED[src] = 1; } }; } else if (text) { scriptNode.text = text; } document.getElementsByTagName('head')[0].appendChild(scriptNode); } catch (e) { } } /** * 返回按ID检索的元素对象 */ try { if (typeof (eval('$')) == "function") { } else { function $(id) { return !id ? null : document.getElementById(id); } } } catch (e) { function $(id) { return !id ? null : document.getElementById(id); } } /** * 返回浏览器版本 * * 返回一个对象,对象属性：type，version */ function getExplorerInfo() { var explorer = window.navigator.userAgent.toLowerCase(); // ie if (explorer.indexOf("msie") >= 0) { var ver = explorer.match(/msie ([\d.]+)/)[1]; return { type : "IE", version : ver }; } // firefox else if (explorer.indexOf("firefox") >= 0) { var ver = explorer.match(/firefox\/([\d.]+)/)[1]; return { type : "Firefox", version : ver }; } // Chrome else if (explorer.indexOf("chrome") >= 0) { var ver = explorer.match(/chrome\/([\d.]+)/)[1]; return { type : "Chrome", version : ver }; } // Opera else if (explorer.indexOf("opera") >= 0) { var ver = explorer.match(/opera.([\d.]+)/)[1]; return { type : "Opera", version : ver }; } // Safari else if (explorer.indexOf("Safari") >= 0) { var ver = explorer.match(/version\/([\d.]+)/)[1]; return { type : "Safari", version : ver }; } } /** * 显示元素 待验证 visibility hideen 会隐藏元素，但是会占用作用域 */ // function $(id) { // return !id ? null : document.getElementById(id); // } function display(id) { var obj = $(id); if (obj.style.visibility) { obj.style.visibility = obj.style.visibility == 'visible' ? 'hidden' : 'visible'; } else { obj.style.display = obj.style.display == '' ? 'none' : ''; } } /** * 与insertBefore方法（已存在）对应的insertAfter方法 * * */ function insertAfter(newChild, refChild) { var parElem = refChild.parentNode; if (parElem.lastChild == refChild) { refChild.appendChild(newChild); } else { parElem.insertBefore(newChild, refChild.nextSibling); } } /** * 兼容浏览器绑定元素事件 * * obj：元素 * * evt:时间名称 * * fn:触发函数 * */ function addEventSamp(obj, evt, fn) { if (obj.addEventListener) { obj.addEventListener(evt, fn, false); } else if (obj.attachEvent) { obj.attachEvent('on' + evt, fn); } } /** * 光标停在文字的后面，文本框获得焦点时调用 */ function focusLast() { var e = event.srcElement; var r = e.createTextRange(); r.moveStart('character', e.value.length); r.collapse(true); r.select(); } /** * 检验URL链接是否有效 * * .Open("GET",URL, false) true:异步；false:同步 */ function getUrlState(URL) { var suc = false; 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) { suc = true; } else { suc = false; } } else { suc = false; } } return suc; } /** * 格式化CSS样式代码 */ function formatCss(s) {// 格式化代码 s = s.replace(/\s*([\{\}\:\;\,])\s*/g, "$1"); s = s.replace(/;\s*;/g, ";"); // 清除连续分号 s = s.replace(/\,[\s\.\#\d]*{/g, "{"); s = s.replace(/([^\s])\{([^\s])/g, "$1 {\n\t$2"); s = s.replace(/([^\s])\}([^\n]*)/g, "$1\n}\n$2"); s = s.replace(/([^\s]);([^\s\}])/g, "$1;\n\t$2"); return s; } /** * 压缩CSS样式代码 */ function yasuoCss(s) {// 压缩代码 s = s.replace(/\/\*(.|\n)*?\*\//g, ""); // 删除注释 s = s.replace(/\s*([\{\}\:\;\,])\s*/g, "$1"); s = s.replace(/\,[\s\.\#\d]*\{/g, "{"); // 容错处理 s = s.replace(/;\s*;/g, ";"); // 清除连续分号 s = s.match(/^\s*(\S+(\s+\S+)*)\s*$/); // 去掉首尾空白 return (s == null) ? "" : s[1]; } /** * 获取当前路径 */ function getCurrentPageUrl() { var currentPageUrl = ""; if (typeof this.href === "undefined") { currentPageUrl = document.location.toString().toLowerCase(); } else { currentPageUrl = this.href.toString().toLowerCase(); } return currentPageUrl; } /** * ip 转 整型 */ function _ip2int(ip) { var num = 0; ip = ip.split("."); num = Number(ip[0]) * 256 * 256 * 256 + Number(ip[1]) * 256 * 256 + Number(ip[2]) * 256 + Number(ip[3]); num = num >>> 0; return num; } /** * 整型解析为IP地址 */ function _int2iP(num) { var str; var tt = new Array(); tt[0] = (num >>> 24) >>> 0; tt[1] = ((num << 8) >>> 24) >>> 0; tt[2] = (num << 16) >>> 24; tt[3] = (num << 24) >>> 24; str = String(tt[0]) + "." + String(tt[1]) + "." + String(tt[2]) + "." + String(tt[3]); return str; } /** * 实现checkbox全选与全不选 */ function checkAll(selectAllBoxId, childBoxsId) { var selectall = document.getElementById(selectAllBoxId); var allbox = document.getElementsByName(childBoxsId); if (selectall.checked) { for ( var i = 0; i < allbox.length; i++) { allbox[i].checked = true; } } else { for ( var i = 0; i < allbox.length; i++) { allbox[i].checked = false; } } } /** * 判断是否移动设备 */ function isMobile() { if (typeof this._isMobile === 'boolean') { return this._isMobile; } var screenWidth = this.getScreenWidth(); var fixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport; var fixViewPortsExperimentRunning = fixViewPortsExperiment && (fixViewPortsExperiment.toLowerCase() === "new"); if (!fixViewPortsExperiment) { if (!this.isAppleMobileDevice()) { screenWidth = screenWidth / window.devicePixelRatio; } } var isMobileScreenSize = screenWidth < 600; var isMobileUserAgent = false; this._isMobile = isMobileScreenSize && this.isTouchScreen(); return this._isMobile; } /** * 判断是否移动设备访问 */ function isMobileUserAgent() { return (/iphone|ipod|android.*mobile|windows.*phone|blackberry.*mobile/i .test(window.navigator.userAgent.toLowerCase())); } /** * 判断是否苹果移动设备访问 */ function isAppleMobileDevice() { return (/iphone|ipod|ipad|Macintosh/i.test(navigator.userAgent .toLowerCase())); } /** * 判断是否安卓移动设备访问 */ function isAndroidMobileDevice() { return (/android/i.test(navigator.userAgent.toLowerCase())); } /** * 判断是否Touch屏幕 */ function isTouchScreen() { return (('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch); } /** * 判断是否在安卓上的谷歌浏览器 */ function isNewChromeOnAndroid() { if (this.isAndroidMobileDevice()) { var userAgent = navigator.userAgent.toLowerCase(); if ((/chrome/i.test(userAgent))) { var parts = userAgent.split('chrome/'); var fullVersionString = parts[1].split(" ")[0]; var versionString = fullVersionString.split('.')[0]; var version = parseInt(versionString); if (version >= 27) { return true; } } } return false; } /** * 判断是否打开视窗 */ function isViewportOpen() { return !!document.getElementById('wixMobileViewport'); } /** * 获取移动设备初始化大小 */ function getInitZoom(){ if(!this._initZoom){ var screenWidth = Math.min(screen.height, screen.width); if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ screenWidth = screenWidth/window.devicePixelRatio; } this._initZoom = screenWidth /document.body.offsetWidth; } return this._initZoom; } /** * 获取移动设备最大化大小 */ function getZoom(){ var screenWidth = (Math.abs(window.orientation) === 90) ? Math.max(screen.height, screen.width) : Math.min(screen.height, screen.width); if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ screenWidth = screenWidth/window.devicePixelRatio; } var FixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport; var FixViewPortsExperimentRunning = FixViewPortsExperiment && (FixViewPortsExperiment === "New" || FixViewPortsExperiment === "new"); if(FixViewPortsExperimentRunning){ return screenWidth / window.innerWidth; }else{ return screenWidth / document.body.offsetWidth; } } /** * 获取移动设备屏幕宽度 */ function getScreenWidth(){ var smallerSide = Math.min(screen.width, screen.height); var fixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport; var fixViewPortsExperimentRunning = fixViewPortsExperiment && (fixViewPortsExperiment.toLowerCase() === "new"); if(fixViewPortsExperiment){ if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ smallerSide = smallerSide/window.devicePixelRatio; } } return smallerSide; } /** * 完美判断是否为网址 */ function IsURL(strUrl) { var regular = /^\b(((https?|ftp):\/\/)?[-a-z0-9]+(\.[-a-z0-9]+)*\.(?:com|edu|gov|int|mil|net|org|biz|info|name|museum|asia|coop|aero|[a-z][a-z]|((25[0-5])|(2[0-4]\d)|(1\d\d)|([1-9]\d)|\d))\b(\/[-a-z0-9_:\@&?=+,.!\/~%\$]*)?)$/i; if (regular.test(strUrl)) { return true; } else { return false; } } /** * 根据样式名称检索元素对象 */ function getElementsByClassName(name) { var tags = document.getElementsByTagName('*') || document.all; var els = []; for (var i = 0; i < tags.length; i++) { if (tags[i].className) { var cs = tags[i].className.split(' '); for (var j = 0; j < cs.length; j++) { if (name == cs[j]) { els.push(tags[i]); break; } } } } return els; } /** * 判断是否以某个字符串开头 */ if(!String.prototype.startWith){ String.prototype.startWith = function (s) { return this.indexOf(s) == 0; }; } /** * 判断是否以某个字符串结束 */ if(!String.prototype.endWith){ String.prototype.endWith = function (s) { var d = this.length - s.length; return (d >= 0 && this.lastIndexOf(s) == d); }; } /** * 返回IE浏览器的版本号 */ function getIE(){ if (window.ActiveXObject){ var v = navigator.userAgent.match(/MSIE ([^;]+)/)[1]; return parseFloat(v.substring(0, v.indexOf("."))); } return false; } /** * 获取页面高度 */ function getPageHeight(){ var g = document, a = g.body, f = g.documentElement, d = g.compatMode == "BackCompat" ? a : g.documentElement; return Math.max(f.scrollHeight, a.scrollHeight, d.clientHeight); } /** * 获取页面scrollLeft */ function getPageScrollLeft(){ var a = document; return a.documentElement.scrollLeft || a.body.scrollLeft; } /** * 获取页面宽度 */ function getPageWidth(){ var g = document, a = g.body, f = g.documentElement, d = g.compatMode == "BackCompat" ? a : g.documentElement; return Math.max(f.scrollWidth, a.scrollWidth, d.clientWidth); } /** * 获取页面scrollTop */ function getPageScrollTop(){ var a = document; return a.documentElement.scrollTop || a.body.scrollTop; } /** * 获取页面可视高度 */ function getPageViewHeight() { var d = document, a = d.compatMode == "BackCompat" ? d.body : d.documentElement; return a.clientHeight; } /*****************************补充 ********************************************/ //删除cookies function delCookie(name) { var exp = new Date(); exp.setTime(exp.getTime() - 1); var cval=getCookie(name); if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString(); }