字符串长度截取
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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
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String.prototype.replaceAll = function (s1, s2) { return this .replace( new RegExp(s1, "gm" ), s2) } |
清除空格
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String.prototype.trim = function () { var reExtraSpace = /^\s*(.*?)\s+$/; return this .replace(reExtraSpace, "$1" ) } |
清除左空格/右空格
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function ltrim(s){ return s.replace( /^(\s*| *)/, "" ); } function rtrim(s){ return s.replace( /(\s*| *)$/, "" ); } |
判断是否以某个字符串开头
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String.prototype.startWith = function (s) { return this .indexOf(s) == 0 } |
判断是否以某个字符串结束
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String.prototype.endWith = function (s) { var d = this .length - s.length; return (d >= 0 && this .lastIndexOf(s) == d) } |
转义html标签
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function HtmlEncode(text) { return text.replace(/&/g, '&' ).replace(/\ "/g, '" ').replace(/</g, '<' ).replace(/>/g, '>' ) } |
时间日期格式转换
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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
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function isDigit(value) { var patrn = /^[0-9]*$/; if (patrn.exec(value) == null || value == "" ) { return false } else { return true } } |
设置cookie值
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function setCookie(name, value, Hours) { var d = new Date(); var offset = 8; var utc = d.getTime() + (d.getTimezoneOffset() * 60000); var nd = utc + (3600000 * offset); var exp = new Date(nd); exp.setTime(exp.getTime() + Hours * 60 * 60 * 1000); document.cookie = name + "=" + escape(value) + ";path=/;expires=" + exp.toGMTString() + ";domain=360doc.com;" } |
获取cookie值
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function getCookie(name) { var arr = document.cookie.match( new RegExp( "(^| )" + name + "=([^;]*)(;|$)" )); if (arr != null ) return unescape(arr[2]); return null } |
加入收藏夹
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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
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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
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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
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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
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function stripscript(s) { return s.replace(/<script.*?>.*?<\/script>/ig, '' ); } |
动态加载脚本文件
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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
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function $(id) { return ! id ? null : document.getElementById(id); } |
跨浏览器绑定事件
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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function isAppleMobileDevice(){ return (/iphone|ipod|ipad|Macintosh/i.test(navigator.userAgent.toLowerCase())); } |
判断是否安卓移动设备访问
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function isAndroidMobileDevice(){ return (/android/i.test(navigator.userAgent.toLowerCase())); } |
判断是否Touch屏幕
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function isTouchScreen(){ return (( 'ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch); } |
判断是否打开视窗
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function isViewportOpen() { return !!document.getElementById( 'wixMobileViewport' ); } |
获取移动设备初始化大小
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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
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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
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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
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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
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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
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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
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function getPageScrollLeft(){ var a = document; return a.documentElement.scrollLeft || a.body.scrollLeft; } |
获取页面可视宽度
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function getPageViewWidth() { var d = document, a = d.compatMode == "BackCompat" ? d.body: d.documentElement; return a.clientWidth; } |
获取页面宽度
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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
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function getPageScrollTop() { var a = document; return a.documentElement.scrollTop || a.body.scrollTop; } |
获取页面可视高度
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function getPageViewHeight() { var d = document, a = d.compatMode == "BackCompat" ? d.body: d.documentElement; return a.clientHeight; } |
去掉url前缀
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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
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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
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//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
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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
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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
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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
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/* 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
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// 针对火狐不支持offsetX/Y function 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
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//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
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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
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// 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
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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
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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
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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
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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
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function IsReverse(text) { return text.split( '' ).reverse().join( '' ); } |
清除html代码中的脚本
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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
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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
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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
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( 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
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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
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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
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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
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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
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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
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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; }
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来源:https://www.cnblogs.com/wzzl/p/5028163.html