onkeypress 在用户按下并放开任何字母数字键时发生。系统按钮(例如,箭头键和功能键)无法得到识别。[响应一个键]onkeyup 在用户放开任何先前按下的键盘键时发生。onkeydown 在用户按下任何键盘键(包括系统按钮,如箭头键和功能键)时发生。[响应几个键的组合]可以响应Ctrl、Alt、Shift等功能键和键的组合,而onkeypress不能onfocusout 失去光标事件onfocus 获得光标事件onabort 图片下载被打断时onblur 元素失去焦点时onclick 鼠标点击ondblclick 鼠标双击onerror 加载文档或图片发生错误时onmousedown 鼠标被按下时onmousemove 鼠标被移动时onmouseout 鼠标离开元素时onmouseover 鼠标经过元素时onmouseup 释放鼠标按键时onunload 用户离开页面时
100个原生JavaScript使用功能代码片段
目录
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判断是否为数字类型
8.原生JavaScript时间日期格式转换
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
50.原生JavaScript获取页面scrollTop
51.原生JavaScript获取页面可视高度
52.原生JavaScript跨浏览器添加事件
53.原生JavaScript跨浏览器删除事件
54.原生JavaScript去掉url前缀
55.原生JavaScript随机数时间戳
56.原生JavaScript全角半角转换,iCase: 0全到半,1半到全,其他不转化
57.原生JavaScript确认是否键盘有效输入值
58.原生JavaScript获取网页被卷去的位置
59.原生JavaScript另一种正则日期格式化函数+调用方法
60.原生JavaScript时间个性化输出功能
61.原生JavaScript解决offsetX兼容性问题
62.原生JavaScript常用的正则表达式
63.原生JavaScript实现返回顶部的通用方法
64.原生JavaScript获得URL中GET参数值
65.原生JavaScript实现全选通用方法
66.原生JavaScript实现全部取消选择通用方法
67.原生JavaScript实现打开一个窗体通用方法
68.原生JavaScript判断是否为客户端设备
69.原生JavaScript获取单选按钮的值
70.原生JavaScript获取复选框的值
71.原生JavaScript判断是否为邮箱
72.原生JavaScript判断是否有列表中的危险字符
73.原生JavaScript判断字符串是否大于规定的长度
74.原生JavaScript判断字符串是为网址不区分大小写
75.原生JavaScript判断字符串是否为小数
76.原生JavaScript判断字符串是否为整数
77.原生JavaScript判断字符串是否为浮点数
78.原生JavaScript判断字符是否为A-Za-z英文字母
79.原生JavaScript判断字符串是否邮政编码
80.原生JavaScript判断字符是否空NULL
81.原生JavaScript用正则表达式提取页面代码中所有网址
82.原生JavaScript用正则表达式清除相同的数组(低效率)
83.原生JavaScript用正则表达式清除相同的数组(高效率)
84.原生JavaScript用正则表达式按字母排序,对每行进行数组排序
85.原生JavaScript字符串反序
86.原生JavaScript用正则表达式清除html代码中的脚本
87.原生JavaScript动态执行JavaScript脚本
88.原生JavaScript动态执行VBScript脚本
89.原生JavaScript实现金额大写转换函数
90.原生JavaScript常用的正则表达式大收集
91.原生JavaScript实现窗体改变事件resize的操作(兼容所以的浏览器)
92.原生JavaScript用正则清除空格分左右
93.原生JavaScript判断变量是否空值
94.原生JavaScript实现base64解码
95.原生JavaScript实现utf8解码
96.原生JavaScript获取窗体可见范围的宽与高
97.原生JavaScript判断IE版本号(既简洁.又向后兼容!)
98.原生JavaScript获取浏览器版本号
99.原生JavaScript半角转换为全角函数
100.原生JavaScript全角转换为半角函数
代码片段
function cutstr(str, len) { var temp; var icount = 0; var patrn = /[^\x00-\xff]/; // 匹配双字节字符(包括汉字在内) var strren = ""; 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; } } else { break; } } return strre + "...";}
function getHost(url) { var host = "null"; if (typeof url == undefined || url === null) { url = window.location.href; } var regex = /^\w+\:\/\/([^\/]*).*/; var match = url.match(regex); if (typeof match != undefined && match != null) { host = match[1]; } return host;}
String.prototype.trim = function() { var reExtraSpace = /^\s*(.*?)\s+$/; return this.replace(reExtraSpace, "");}
String.prototype.replaceAll = function(s1, s2) { return this.replace(new RegExp(s1, "gm"), s2);}
function HtmlEncode(text) { return text.replace(/&/g, '&') .replace(/\"/g, '"') .replace(/</g, '<') .replace(/>/g, '>');}
function HtmlDecode(text) { return text.replace('&', /&/g) .replace('"', /\"/g) .replace('<', /</g) .replace('>', />/g);}
function isDigit(value) { var patrn = /^[0-9]*$/; if (patrn.exec(value) == null || value == "") { return false } else { return true }}
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 }
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;"}
function getCookie(name) { var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)")); if (arr != null) return unescape(arr[2]); return null}
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") } }}
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://***') }}
var ua = navigator.userAgent.toLowerCase();var isIE6 = ua.indexOf("msie 6") > -1;if (isIE6) { try { document.execCommand("BackgroundImageCache", false, true) } catch(e) {}}
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) }}
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;}
function stripscript(s) { return s.replace(/<script.*?>.*?<\/script>/ig, '');}
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) {}}
function $(id) { return !id ? null : document.getElementById(id);}
function browserVersion(types) { var other = 1; for(i in types) { var v = types[i] ? types[i] : i; if(USERAGENT.indexOf(v) != -1) { var re = new RegExp(v + '(\/|\s)([\d\.]+)', 'ig'); var matches = re.exec(USERAGENT); var ver = matches != null ? matches[2] : 0; other = ver !== 0 && v != 'mozilla' ? 0 : other; }else { var ver = 0; } eval('BROWSER.' + i + '= ver'); } BROWSER.other = other;}
function $(id) { return !id ? null : document.getElementById(id);}function display(id) { var obj = $(id); if(obj.style.visibility) { obj.style.visibility = obj.style.visibility == 'visible' ? 'hidden' : 'visible'; } else { obj.style.display = obj.style.display == '' ? 'none' : ''; }}
function insertAfter(newChild, refChild) { var parElem = refChild.parentNode; if(parElem.lastChild == refChild){ refChild.appendChild(newChild); }else{ parElem.insertBefore(newChild, refChild.nextSibling); } }
function addEventSamp(obj, evt, fn){ if (obj.addEventListener) { obj.addEventListener(evt, fn, false); }else if(obj.attachEvent){ obj.attachEvent('on' + evt, fn); } }
function focusLast(){ var e = event.srcElement; var r =e.createTextRange(); r.moveStart('character',e.value.length); r.collapse(true); r.select(); }
function getUrlState(URL) { var xmlhttp = new ActiveXObject("microsoft.xmlhttp"); xmlhttp.Open("GET", URL, false); try { xmlhttp.Send(); } catch(e) { } finally { var result = xmlhttp.responseText; if(result) { if(xmlhttp.Status==200){ return true; }else{ return false; } } else { return false; } } }
function formatCss(s){ //格式化代码 s = s.replace(/\s*([\{\}\:\;\,])\s*/g, ""); s = s.replace(/;\s*;/g, ";"); //清除连续分号 s = s.replace(/\,[\s\.\#\d]*{/g, "{"); s = s.replace(/([^\s])\{([^\s])/g, " {\n\t"); s = s.replace(/([^\s])\}([^\n]*)/g, "\n}\n"); s = s.replace(/([^\s]);([^\s\}])/g, ";\n\t"); return s;}
function yasuoCss (s) { //压缩代码 s = s.replace(/\/\*(.|\n)*?\*\//g, ""); //删除注释 s = s.replace(/\s*([\{\}\:\;\,])\s*/g, ""); s = s.replace(/\,[\s\.\#\d]*\{/g, "{"); //容错处理 s = s.replace(/;\s*;/g, ";"); //清除连续分号 s = s.match(/^\s*(\S+(\s+\S+)*)\s*$/); //去掉首尾空白 return (s == null) ? "" : s[1];}
var currentPageUrl = "";if (typeof this.href === undefined) { currentPageUrl = document.location.toString().toLowerCase();}else { currentPageUrl = this.href.toString().toLowerCase();}
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;}
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;}
function checkAll() { var selectall = document.getElementById("selectall"); var allbox = document.getElementsByName("allbox"); 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; } }}
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;}
function isMobileUserAgent() { return (/iphone|ipod|android.*mobile|windows.*phone|blackberry.*mobile/i.test(window.navigator.userAgent.toLowerCase()));}
function isAppleMobileDevice() { return (/iphone|ipod|ipad|Macintosh/i.test(navigator.userAgent.toLowerCase()));}
function isAndroidMobileDevice(){ return (/android/i.test(navigator.userAgent.toLowerCase()));}
function isTouchScreen() { return (('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch);}
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;}
function isViewportOpen() { return !!document.getElementById('wixMobileViewport');}
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;}
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; }}
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;}
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; }}
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;}
String.prototype.startWith = function (s) { return this.indexOf(s) == 0;}
String.prototype.endWith = function (s) { var d = this.length - s.length; return (d >= 0 && this.lastIndexOf(s) == d);}
function getIE(){ if (window.ActiveXObject){ var v = navigator.userAgent.match(/MSIE ([^;]+)/)[1]; return parseFloat(v.substring(0, v.indexOf("."))); } return false;}
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);}
function getPageScrollLeft(){ var a = document; return a.documentElement.scrollLeft || a.body.scrollLeft;}
function getPageViewWidth(){ var d = document, a = d.compatMode == "BackCompat" ? d.body : d.documentElement; return a.clientWidth; // 可视宽度为clientWidth}
// 考虑带滚动条的全部宽度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);}
function getPageScrollTop(){ var a = document; return a.documentElement.scrollTop || a.body.scrollTop;}
function getPageViewHeight() { var d = document, a = d.compatMode == "BackCompat" ? d.body : d.documentElement; return a.clientHeight;}
function addEvt(oTarget, sEvtType, fnHandle) { if(!oTarget) {return;} if(oTarget.addEventListener) { oTarget.addEventListener(sEvtType, fnHandle, false); } else if(oTarget.attachEvent) { oTarget.attachEvent("on" + sEvtType, fnHandle); } else { oTarget["on" + sEvtType] = fnHandle; }}
function delEvt(oTarget, sEvtType, fnHandle){ if(!oTarget) {return;} if(oTarget.addEventListener) { oTarget.addEventListener(sEvtType,fnHandle,false); } else if(oTarget.attachEvent) { oTarget.attachEvent("on" + sEvtType,fnHandle); } else { oTarget["on" + sEvtType] = fnHandle; }}
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;}
function uniqueId() { var a = Math.random, b = parseInt; return Number(new Date()).toString()+b(10*a())+b(10*a())+b(10*a());}
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(""); }
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;}
function getScrollXY() { return document.body.scrollTop ? { x: document.body.scrollLeft, y: document.body.scrollTop }: { x: document.documentElement.scrollLeft, y: document.documentElement.scrollTop }}
Date.prototype.format = function(format) { // author: meizz 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., (this.getFullYear()+"").substr(4 - RegExp..length)); } for(var k in o)if(new RegExp("("+ k +")").test(format)) { format = format.replace(RegExp., RegExp..length==1 ? o[k] : ("00"+ o[k]).substr((""+ o[k]).length)); } return format;}alert(new Date().format("yyyy-MM-dd hh:mm:ss"));
/*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() + 1 , 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;}
// 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;}
//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*)?$/;//年/月/日(年-月-日、年.月.日)/^(19|20)\d\d[- /.](0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])$/;//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}$/;//匹配空白行的正则表达式/\n\s*\r/;//匹配中国邮政编码/[1-9]\d{5}(?!\d)/;//匹配身份证/\d{15}|\d{18}/;//匹配国内电话号码/(\d自定义事件-|\d{4}-)?(\d{8}|\d{7})?/;//匹配IP地址/((2[0-4]\d|25[0-5]|[01]?\d\d?)\.)自定义事件(2[0-4]\d|25[0-5]|[01]?\d\d?)/;//匹配首尾空白字符的正则表达式/^\s*|\s*$/;//匹配HTML标记的正则表达式< (\S*?)[^>]*>.*?|< .*? />;
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');
// 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]) { var GETs = querystr[1].split("&"), GET = new Array(); for(i = 0; i < GETs.length; i++){ tmp_arr = GETs[i].split("="); key = tmp_arr[0]; GET[key] = tmp_arr[1]; } } return querystr[1];}
function checkall(form, prefix, checkall) { var checkall = checkall ? checkall : 'chkall'; for(var i = 0; i < form.elements.length; i++) { var e = form.elements[i]; if(e.type=="checkbox"){ e.checked = form.elements[checkall].checked; } }}
function uncheckAll(form) { for (var i = 0; i < form.elements.length; i++){ var e = form.elements[i]; if (e.name != 'chkall') e.checked = !e.checked; }}
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(); }}
function client(o){ var b = navigator.userAgent.toLowerCase(); var t = false; if (o == 'isOP'){ t = b.indexOf('opera') > -1; } if (o == 'isIE'){ t = b.indexOf('msie') > -1; } if (o == 'isFF'){ t = b.indexOf('firefox') > -1; } return t;}
function get_radio_value(field){ if(field && field.length){ for(var i = 0; i < field.length; i++){ if(field[i].checked){ return field[i].value; } } }else { return; } }
function get_checkbox_value(field) { if(field && field.length){ for(var i = 0; i < field.length; i++){ if(field[i].checked && !field[i].disabled){ return field[i].value; } } } else { return; } }
function isEmail(str){ var re=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/; if (re.test(str) != true) { return false; }else{ return true; } }
function isValidReg(chars){ var re=/<|>|\[|\]|\{|\}|『|』|※||||§|||||||□||㊣|﹋|⊕|⊙|〒|ㄅ|ㄆ|ㄇ|ㄈ|ㄉ|ㄊ|ㄋ|ㄌ|ㄍ|ㄎ|ㄏ|ㄐ|ㄑ|ㄒ|ㄓ|ㄔ|ㄕ|ㄖ|ㄗ|ㄘ|ㄙ|ㄚ|ㄛ|ㄜ|ㄝ|ㄞ|ㄟ|ㄢ|ㄣ|ㄤ|ㄥ|ㄦ|ㄧ|ㄨ|ㄩ|■|▄|▆|\*|@|#|\^|\/; if (re.test( chars) == true) { return false; }else{ return true; } }
function isValidLength(chars, len) { if (chars.length < len) { return false; } return true;}
function isValidURL( chars ) { var re=/^([hH][tT]JavaScript[pP]:\/\/|[hH][tT]JavaScript[pP][sS]:\/\/)(\S+\.\S+)$/; if (!isNULL(chars)) { chars = jsTrim(chars); if (chars.match(re) == null) return false; else return true; } return false;}
function isValidDecimal( chars ) { var re=/^\d*\.?\d{1,2}$/; if (chars.match(re) == null) return false; else return true;}
function isNumber(chars) { var re=/^\d*$/; if (chars.match(re) == null) return false; else return true;}
function isFloat(str) { for(i=0;i<str.length;i++) { if((str.charAt(i)<"0" || str.charAt(i)>"9")&& str.charAt(i) != '.') { return false; } } return true;}
function isLetters(str) { var re = /^[A-Za-z]+$/; if (str.match(re) == null) return false; else return true;}
function isValidPost( chars ) { var re=/^\d{6}$/; if (chars.match(re) == null) return false; else return true;}
function isNULL( chars ) { if (chars == null) return true; if (jsTrim(chars).length == 0) return true; return false;}
var aa = document.documentElement.outerHTML.match(/(url\(|src=|href=)[\"\']*([^\"\'\(\)\<\>\[\] ]+)[\"\'\)]*|(http:\/\/[\w\-\.]+[^\"\'\(\)\<\>\[\] ]+)/ig).join("\r\n").replace(/^(src=|href=|url\()[\"\']*|[\"\'\>\) ]*$/igm,"");alert(aa);
Array.prototype.unique = function() { return this.reverse().join(",").match(/([^,]+)(?!.*)/ig).reverse();}
String.prototype.unique = function() { var x = this.split(/[\r\n]+/); var y = ''; for(var i = 0; i < x.length; i++){ if(!new RegExp("^"+x[i].replace(/([^\w])/ig,"\")+"$","igm").test(y)) { y + = x[i]+"\r\n"; } } return y;}
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;}
function IsReverse(text) { return text.split('').reverse().join('');}
function clear_script() { K1.valu e= 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,"");}
function javascript(){ try{ eval(K1.value); }catch(e){ alert(e.message); }}
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); }}
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[i] = temp[i]; } return value;}
匹配中文字符的正则表达式: [\u4e00-\u9fa5] 匹配双字节字符(包括汉字在内):[^\x00-\xff] 匹配空行的正则表达式:\n[\s| ]*\r 匹配 HTML 标记的正则表达式:<(.*)>.*<\/>|<(.*) \/>匹配首尾空格的正则表达式:(^\s*)|(\s*$) 匹配 IP 地址的正则表达式:/(\d+)\.(\d+)\.(\d+)\.(\d+)/g匹配 Email 地址的正则表达式:\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*匹配网址 URL 的正则表达式:http://(/[\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?sql 语句:^(select|drop|delete|create|update|insert).*$ 非负整数:^\d+$ 正整数:^[0-9]*[1-9][0-9]*$ 非正整数:^((-\d+)|(0+))$ 负整数:^-[0-9]*[1-9][0-9]*$ 整数:^-?\d+$ 非负浮点数:^\d+(\.\d+)?$ 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]*))$ 非正浮点数:^((-\d+\.\d+)?)|(0+(\.0+)?))$ 英文字符串:^[A-Za-z]+$ 英文大写串:^[A-Z]+$ 英文小写串:^[a-z]+$ 英文字符数字串:^[A-Za-z0-9]+$ 英数字加下划线串:^\w+$ E-mail地址:^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$ URL:^[a-zA-Z]+://(\w+(-\w+)*)(\.(\w+(-\w+)*))*(\?\s*)?$ 或:^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$ 邮政编码:^[1-9]\d{5}$ 电话号码:^((\(\d{2,3}\))|(\d自定义事件\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$ 手机号码:^((\(\d{2,3}\))|(\d自定义事件\-))?13\d{9}$ 双字节字符(包括汉字在内):^\x00-\xff 匹配首尾空格:(^\s*)|(\s*$)匹配 HTML 标记:<(.*)>.*<\/>|<(.*) \/> 匹配空行:\n[\s| ]*\r 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+) 提取信息中的中国手机号码:(86)*0*13\d{9} 提取信息中的中国固定电话号码:(\(\d{3,4}\)|\d{3,4}-|\s)?\d{8} 提取信息中的中国电话号码(包括移动和固定电话):(\(\d{3,4}\)|\d{3,4}-|\s)?\d{7,14} 提取信息中的中国邮政编码:[1-9]html代码(\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+)? IP:(\d+)\.(\d+)\.(\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]+$
(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();})();
function ltrim(s){ return s.replace( /^(\s*| *)/, ""); } function rtrim(s){ return s.replace( /(\s*| *)$/, ""); } function trim(s){ return ltrim(rtrim(s)); }
/** * 判断变量是否空值 * undefined, null, '', false, 0, [], {} 均返回true,否则返回false */function empty(v){ switch (typeof v){ case 'undefined' : return true; case 'string' : if(trim(v).length == 0) return true; break; case 'boolean' : if(!v) return true; break; case 'number' : if(0 === v) return true; break; case 'object' : if(null === v) return true; if(undefined !== v.length && v.length==0) return true; for(var k in v){return false;} return true; break; } return false;}
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;}
95, 原生JavaScript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('');}
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);}
var _IE = (function(){ var v = 3, div = document.createElement('div'), all = div.getElementsByTagName('i'); while ( div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->', all[0] ); return v > 4 ? v : false ;}());
function browserVersion(types) { var other = 1; for (i in types) { var v = types[i] ? types[i] : i; if (USERAGENT.indexOf(v) != -1) { var re = new RegExp(v + '(\/|\s|:)([\d\.]+)', 'ig'); var matches = re.exec(USERAGENT); var ver = matches != null ? matches[2] : 0; other = ver !== 0 && v != 'mozilla' ? 0 : other; } else { var ver = 0; } eval('BROWSER.' + i + '= ver'); } BROWSER.other = other;}
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;}
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;}