总结了一个JavaScript获取当前终端类型（pc， mobile），操作系统类型，浏览器类型，浏览器版本的小工具。
个人觉得还行，测试过没有问题，能识别ie7以及以上。
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/** author: Weihuan date: 2017-6-26**/var _AgentInfo = { deviceType: "", // pc or mobile OSname: "", // windows, Android, linux and so on... browserName: "", // chrome, safari, firefox, IE and so on... browserVer: "", // browser version， important if in IE environment. adaptType: 0, // A type value, Adapt to the screen due to width _init: function(){ _AgentInfo.setDeviceAndOS(); _AgentInfo.setBrowser(); }, setDeviceAndOS: function(){ var name = "unknown"; if(window.navigator.userAgent.indexOf("Android") != -1){ name = "Android"; }else if(window.navigator.userAgent.indexOf("iPhone") != -1){ name = "iPhone"; }else if(window.navigator.userAgent.indexOf("SymbianOS") != -1){ name = "SymbianOS"; }else if(window.navigator.userAgent.indexOf("Windows Phone") != -1){ name = "Windows Phone"; }else if(window.navigator.userAgent.indexOf("iPad") != -1){ name = "iPad"; }else if(window.navigator.userAgent.indexOf("iPod") != -1){ name = "iPod"; } if(name != "unknown"){ _AgentInfo.OSname = name; _AgentInfo.deviceType = "mobile"; return; } if (window.navigator.userAgent.indexOf("Windows NT 10.0")!= -1){ name="Windows 10"; }else if (window.navigator.userAgent.indexOf("Windows NT 6.2") != -1){ name="Windows 8"; }else if (window.navigator.userAgent.indexOf("Windows NT 6.1") != -1){ name="Windows 7"; }else if (window.navigator.userAgent.indexOf("Windows NT 6.0") != -1){ name="Windows Vista"; }else if (window.navigator.userAgent.indexOf("Windows NT 5.1") != -1){ name="Windows XP"; }else if (window.navigator.userAgent.indexOf("Windows NT 5.0") != -1){ name="Windows 2000"; }else if (window.navigator.userAgent.indexOf("Mac") != -1){ name="Mac/iOS"; }else if (window.navigator.userAgent.indexOf("X11") != -1){ name="UNIX"; }else if (window.navigator.userAgent.indexOf("Linux") != -1){ name="Linux"; } _AgentInfo.OSname = name; _AgentInfo.deviceType = "pc"; }, setBrowser: function(){ var nAgt = navigator.userAgent; var browserName = navigator.appName; var fullVersion = ‘‘+parseFloat(navigator.appVersion); var majorVersion = parseInt(navigator.appVersion,10); var nameOffset,verOffset,ix; if ((verOffset=nAgt.indexOf("Opera"))!=-1) { // In Opera, the true version is after "Opera" or after "Version" browserName = "Opera"; fullVersion = nAgt.substring(verOffset+6); if ((verOffset=nAgt.indexOf("Version"))!=-1) fullVersion = nAgt.substring(verOffset+8); } else if ( (nAgt.indexOf("Trident"))!=-1 ) { // ( ver >= ie7) In MSIE, the true version is after "MSIE" in userAgent if((verOffset=nAgt.indexOf("MSIE"))!=-1){ fullVersion = nAgt.substring(verOffset+5); }else { fullVersion = ‘11.0‘; } if(fullVersion == 5){ fullVersion = "11.0"; } browserName = "IE"; } else if ((verOffset=nAgt.indexOf("Chrome"))!=-1) { // In Chrome, the true version is after "Chrome" browserName = "Chrome"; fullVersion = nAgt.substring(verOffset+7); } else if ((verOffset=nAgt.indexOf("Safari"))!=-1) { // In Safari, the true version is after "Safari" or after "Version" browserName = "Safari"; fullVersion = nAgt.substring(verOffset+7); if ((verOffset=nAgt.indexOf("Version"))!=-1) fullVersion = nAgt.substring(verOffset+8); } else if ((verOffset=nAgt.indexOf("Firefox"))!=-1) { // In Firefox, the true version is after "Firefox" browserName = "Firefox"; fullVersion = nAgt.substring(verOffset+8); } else if ( (nameOffset=nAgt.lastIndexOf(‘ ‘)+1) < (verOffset=nAgt.lastIndexOf(‘/‘)) ){ // In most other browsers, "name/version" is at the end of userAgent browserName = nAgt.substring(nameOffset,verOffset); fullVersion = nAgt.substring(verOffset+1); if (browserName.toLowerCase()==browserName.toUpperCase()) { browserName = navigator.appName; } } if ((ix=fullVersion.indexOf(";"))!=-1) // trim the fullVersion string at semicolon/space if present fullVersion=fullVersion.substring(0,ix); if ((ix=fullVersion.indexOf(" "))!=-1) fullVersion=fullVersion.substring(0,ix); majorVersion = parseInt(‘‘+fullVersion,10); if (isNaN(majorVersion)) { fullVersion = ‘‘+parseFloat(navigator.appVersion); majorVersion = parseInt(navigator.appVersion,10); } _AgentInfo.browserName = browserName; _AgentInfo.browserVer = fullVersion; }, isMobile: function(){ if(_AgentInfo.deviceType == "mobile"){ return true; } return false; }, setAdaptType(){ // A type value, Adapt to the screen due to width. For convenient if(screen.width <= 374){ _AgentInfo.adaptType = 0; }else if(screen.width <= 413){ _AgentInfo.adaptType = 1; }else { _AgentInfo.adaptType = 2; } }} |
