JavaScript常用方法函数收集

1. 字符串长度截取

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 + "..."}

2. 替换全部

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

3. 清除空格

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

4. 清除左空格/右空格

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

5. 判断是否以某个字符串开头

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

6. 判断是否以某个字符串结束

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

7. 转义html标签

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

8. 时间日期格式转换

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}

9. 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    }}

10. 设置cookie值

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;"}

11. 获取cookie值

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

12. 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")}}}

13. 设为首页

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')}}

14. 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)}}

15. 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;}

16. 清除脚本内容

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

17. 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) {}}

18. 返回按ID检索的元素对象

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

19. 跨浏览器绑定事件

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;} }

20. 跨浏览器删除事件

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;}}

21. 为元素添加on方法

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

22. 为元素添加trigger方法

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;};

23. 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);  } }}

24. 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;}

25. 压缩CSS样式代码

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];}

26. 获取当前路径

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

27. 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;}

28. 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()));}

29. 判断是否苹果移动设备访问

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

30. 判断是否安卓移动设备访问

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

31. 判断是否Touch屏幕

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

32. 判断是否打开视窗

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

33. 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;}

34. 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;}}

35. 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;}

36. 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;    }}

37. getElementsByClassName

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}

38. 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);}

39. 获取页面可视宽度

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

40. 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);}

41. 获取页面scrollTop

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

42. 获取页面可视高度

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

43. 去掉url前缀

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;}

44. 随机数时间戳

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

45. 全角半角转换

//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("");}

46. 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;}

47. 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}}

48. 日期格式化函数+调用方法

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"));

49. 时间个性化输出功能

/*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;}

50. 解决offsetX兼容性问题

// 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;}

51. 常用的正则表达式

//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]+$

52. 返回顶部的通用方法

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');

53. 获得URL中GET参数值

// 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];}

54. 打开一个窗体通用方法

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();}}

55. 提取页面代码中所有网址

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

56. 清除相同的数组

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};

57. 按字母排序，对每行进行数组排序

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;}

58. 字符串反序

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

59. 清除html代码中的脚本

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);}}

60. 动态执行VBScript脚本

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);}}

61. 金额大写转换函数

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;}

62. resize的操作

(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();})();

63. 实现base64解码

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;}

64. 实现utf8解码

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('');}

65. 获取窗体可见范围的宽与高

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);}

66. 断鼠标是否移出事件

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);}

67. 半角转换为全角函数

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;}

68. 全角转换为半角函数

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;}