整理了一些JS的常用方法,包括验证啊,全选反选啊,ajax请求啊之类的,因为就是自己用的,写的都比较简单,就算抛砖引玉吧,喜欢的就拿去,不喜欢就拉到
Tools.min.js
/** * JS公用类库文件 * 创建时间:2015-05-13 * 创建人:mction */ (function(){ var D = document; var W = window; var Postfix = '.php' var _Id = function(Id){return document.getElementById(Id);}; Check = { Input:function(Name,Value,Message){ var Input = $(":input[name='"+Name+"']"); if(Input.val() == Value){ Input.focus(); alert(Message); return true; } return false; }, Phone:function(Name){ /* * 联通号段:130/131/132/155/156/185/186/145/176; * 电信号段:133/153/180/181/189/177; * 移动号段:134/135/136/137/138/139/150/151/152/157/158/159/182/183/184/187/188/147/178 */ var Reg = /^1(30|31|32|55|56|85|86|45|76|33|53|80|81|89|77|34|35|36|37|38|39|50|51|52|57|58|59|82|83|84|87|88|47|78)[0-9]{8}$/; var Phone = $(":input[name='"+Name+"']"); if(!Reg.test(Phone.val())){ Phone.focus(); return true; } return false; }, Email:function(Name){ var Reg = /^[a-zA-Z0-9_]+@[a-z0-9]+\.[a-z]+$/; var Email = $(":input[name='"+Name+"']"); if(!Reg.test(Email.val())){ Email.focus(); return true; } return false; }, UserName:function(UserNameMark,Message){ var Reg = /^[\d]{8}$/; var UserName = $(":input[name='"+UserNameMark+"']"); if(!Reg.test(UserName.val())){ UserName.focus(); alert(Message); return true; } return false; }, Password:function(Name){ var Reg = /^([A-Z]+)$|^([a-z]+)$|^([0-9]+)$|^([-`=\\\[\];',\.\/~!@#\$%\^&\*\(\)_+\|\{}:"<>\?]+)$|^.{0,5}$|^.{18,}$/ var Password = $(":input[name='"+Name+"']"); if(Reg.test(Password.val())){ Password.focus(); return true; }else{ return false; } } }; Member = { Login:function(){ var UserName = $(":input[name='username']"); var PassWord = $(":input[name='password']"); if(Check.UserName("username","用户名格式不正确")){ return false; } if(Check.Input("password",'',"密码不能为空")){ return false; } $.ajax({ url:"/User/action"+Postfix, type:"POST", data:{ request:"Login", username:UserName.val(), password:PassWord.val() }, dataType:"json", success:function(Data){ if(Data.state != 200){ alert(Data.message); return false; }else{ location.href= "/User/member"+Postfix; } } }); }, Logout:function(){ location.href = '/User/Logout'+Postfix; } }; Public = { Hi:function(){alert('hi');}, Box_All_Sel:function(Class,AllChecked){//全选反选 var Input = D.getElementsByTagName("input"); var BoxList = []; for(I =0;I<Input.length;I++){ if(Input[I].type == "checkbox" && Input[I].className == Class){ BoxList.push(Input[I]); } } if(AllChecked){ for(I in BoxList){ BoxList[I].checked = true; } }else{ for(I in BoxList){ BoxList[I].checked = BoxList[I].checked ? false : true; } } }, After:function(New,Tar){ if(typeof Tar == 'string'){ var Parent = _Id(Tar); }else{ var Parent = Tar; } if(Parent.parentNode == Parent){ Parent.parentNode.appendChild(New); }else{ Parent.parentNode.insertBefore(New,Parent.nextSibling); } }, Requests:function(O,Class){ //批量请求 //url.request.message.input.inputMessage.inputValue var Data = $("."+ Class +":checked").serialize(); if(Data == ''){ alert("您没有选中任何项"); //alert(O.options[0].value); O.value = O.options[0].value; return; } var TempArr = O.value.split('.'); if(!TempArr[0] || !TempArr[1]){ //验证URL及动作 alert("错误:缺少必须参数"); O.value = O.options[0].value; return; } Data += "&request=" + TempArr[1]; var Message = "确认删除选中项吗?"; if(TempArr[2]){ //验证并设置提示消息 Message = TempArr[2]; } if(confirm(Message)){ var Input = false; if(TempArr[3]){ //验证并设置是否接收用户输入 Input = true; } if(Input == 'True'){ var InputVal = prompt(TempArr[4],TempArr[5]); Data += "&input=" + InputVal; } $.ajax({ url:"./"+TempArr[0]+Postfix, type:'GET', data:Data, dataType:'json', async:false, success:function(Data){ alert(Data.message); location.reload(true); } }); } }, Request : {//单次请求 Data : '', MetHod : '', DataType : '', Async : '', SetData:function(Options,MetHod,DataType,Async){ this.Data = Options; this.MetHod = typeof MetHod == 'undefined' ? 'GET' : MetHod; this.DataType = typeof DataType == 'undefined' ? 'json' : DataType; this.Async = typeof Async == 'undefined' ? true : Async; return this; }, Send:function(Url,Call,IM,Message){ if(!Message){ Message = "确认删除吗?"; } if(typeof Call != 'function'){ Call = function(Data){ switch(this.dataType){ case 'text' :alert(Data);break; default :alert(Data.message);break } location.reload(true); } } var CF = true; var CFM = true; var LId; if(typeof IM != 'undefined' && IM == false){CF = false} if(CF && !confirm(Message)){CFM = false;} if(CFM){ $.ajax({ url:Url, type:this.MetHod, data:this.Data, dataType:this.DataType, async:this.Async, beforeSend:function(O){LId = Public.Loading.Open("正在处理中");}, success:Call, error:function(E,Info,EO){alert(E.statusText + ":" + E.responseText);}, complete:function(O){Public.Loading.Close(LId);} }); } } }, Desc : { DescId : '', Display:function(O,Message){ var Id = parseInt(Math.random() * 1000); this.DescId = Id; var Desc = D.createElement('description'); Desc.id = Id; Desc.innerHTML = Message; Desc.style.width = "200px"; Desc.style.border = "1px solid #dfdfdf"; Desc.style.backgroundColor = "#fff"; Desc.style.lineHeight = "normal"; Desc.style.position = "absolute"; Desc.style.top = O.offsetTop + 'px'; Desc.style.marginLeft = "5px"; Public.After(Desc,O); O.setAttribute("onblur",'Public.Desc.Close()'); }, Close:function(){ $("#"+this.DescId).remove(); } }, Options : { File_Input:function(Obj){//添加文件选择框 var chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678'; var ObjName = ''; for (var i = 0; i < 5; i++) { ObjName += chars.charAt(Math.floor(Math.random() * chars.length)); } var InputFile = D.createElement("input"); InputFile.type = "file"; InputFile.name = ObjName; InputFile.accept = "image/*"; var A = D.createElement("a"); A.href = "javascript:;"; A.style.marginLeft = "300px"; A.innerHTML = "删除"; A.setAttribute("onclick",'$("div").remove("#'+ObjName+'")'); var Div = D.createElement("div"); Div.id = ObjName; Div.style.padding = "5px"; Div.style.borderBottom = "1px solid #cccccc"; Public.After(Div,Obj); _Id(ObjName).appendChild(InputFile); _Id(ObjName).appendChild(A); } }, Loading : { WindowId:'', Open:function(Message){ var Id = parseInt(Math.random() * 1000); this.WindowId = Id; var Div = D.createElement("div"); Div.id = Id; Div.style.width = "80%"; Div.style.height = "50px"; Div.style.backgroundColor = "#000"; Div.style.opacity = "0.5"; Div.style.borderRadius = "10px"; Div.style.position = "fixed"; Div.style.top = (W.innerHeight - 50) / 2 + "px"; Div.style.left = "10%"; var P = D.createElement("p"); P.style.textAlign = "center"; P.style.color = "#fff"; P.style.lineHeight = "50px"; P.style.height = "50px"; var Img = D.createElement('img'); Img.src = "/phps/Public/images/loading.gif"; Img.style.marginBottom = "-5px"; if(Message){ P.innerHTML = Message; }else{ P.innerHTML = "正在处理中"; } P.appendChild(Img); D.getElementsByTagName("body")[0].appendChild(Div); _Id(this.WindowId).appendChild(P); return Id; }, Close:function(Id){ if(typeof Id != 'undefined' && Id != null){ D.getElementsByTagName("body")[0].removeChild(_Id(Id)); }else if(this.WindowId != ''){ D.getElementsByTagName("body")[0].removeChild(_Id(this.WindowId)); } } }, Tabs : { TabsNum : 1, TabListId : '', WindowId : '', New_Tabs:function(TabListId,WindowId,OpenUrl,PageTitle){ this.TabListId = TabListId; this.WindowId = WindowId; var IframeList = _Id(WindowId).getElementsByTagName("iframe"); //alert(Iframe.length); for(I = 0;I < IframeList.length;I ++){ IframeList[I].style.display = "none"; } var TabList = _Id(TabListId).getElementsByTagName("li"); //alert(TabList); for(I = 0;I < TabList.length;I ++){ TabList[I].className = ""; } var Iframe = D.createElement("iframe"); Iframe.id = "IFR"+this.TabsNum; Iframe.src = OpenUrl; Iframe.frameborder = 0; Iframe.width = "100%"; Iframe.height = "100%"; var A = D.createElement("a"); A.href = "javascript:;"; A.id = "IFA"+this.TabsNum; A.innerHTML = PageTitle; A.setAttribute("data-if",Iframe.id); A.setAttribute("onclick","Public.Tabs.View(this)"); var Li = D.createElement("li"); Li.id = "IFL"+this.TabsNum; Li.className = "on"; Li.setAttribute("data-if",Iframe.id); var Close = D.createElement("a"); Close.href = "javascript:;"; Close.innerHTML = " x "; Close.setAttribute("data-li",Li.id); Close.setAttribute("data-if",Iframe.id); Close.setAttribute("onclick","Public.Tabs.Close(this)"); this.TabsNum++; _Id(TabListId).appendChild(Li); _Id(Li.id).appendChild(A); _Id(Li.id).appendChild(Close); _Id(WindowId).appendChild(Iframe); }, View:function(O){ var IframeList = _Id(this.WindowId).getElementsByTagName("iframe"); for(I = 0;I < IframeList.length;I ++){ IframeList[I].style.display = "none"; } var TabList = _Id(this.TabListId).getElementsByTagName("li"); for(I = 0;I < TabList.length;I ++){ TabList[I].className = ""; } O.parentNode.className = "on"; _Id(O.getAttribute('data-if')).style.display = "block"; }, Close:function(O){ var LiO = _Id(O.getAttribute("data-li")); var IFO = _Id(O.getAttribute("data-if")); if(LiO.nextElementSibling){ var DisPlayLi = LiO.nextElementSibling; }else{ var TabList = _Id(this.TabListId).getElementsByTagName("li"); var DisPlayLi = TabList[TabList.length - 2]; } if(IFO.nextElementSibling){ var DisPlayIF = IFO.nextElementSibling; }else{ var IfList = _Id(this.WindowId).getElementsByTagName("iframe"); var DisPlayIF = _Id(IfList[IfList.length - 2].id); } LiO.parentNode.removeChild(LiO); IFO.parentNode.removeChild(IFO); DisPlayLi.className = "on"; DisPlayIF.style.display = "block"; } } }; })();
这些是JAVASCRIPT的基本知识,如果是新手的话,我觉得这些不够你们学习,你可以去找些资料完整的学习下JAVASCRIPT。
这些对于已经有一些JAVASCRIPT基础的朋友,可以先浏览下这些知识,或许其中有你已经遗忘的或者遗漏的,回忆下JAVASCRIPT对你后面继续深入学下AJAX有很大的帮助。

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JavaScript can be used for front-end and back-end development. The front-end enhances the user experience through DOM operations, and the back-end handles server tasks through Node.js. 1. Front-end example: Change the content of the web page text. 2. Backend example: Create a Node.js server.

Choosing Python or JavaScript should be based on career development, learning curve and ecosystem: 1) Career development: Python is suitable for data science and back-end development, while JavaScript is suitable for front-end and full-stack development. 2) Learning curve: Python syntax is concise and suitable for beginners; JavaScript syntax is flexible. 3) Ecosystem: Python has rich scientific computing libraries, and JavaScript has a powerful front-end framework.

The power of the JavaScript framework lies in simplifying development, improving user experience and application performance. When choosing a framework, consider: 1. Project size and complexity, 2. Team experience, 3. Ecosystem and community support.

Introduction I know you may find it strange, what exactly does JavaScript, C and browser have to do? They seem to be unrelated, but in fact, they play a very important role in modern web development. Today we will discuss the close connection between these three. Through this article, you will learn how JavaScript runs in the browser, the role of C in the browser engine, and how they work together to drive rendering and interaction of web pages. We all know the relationship between JavaScript and browser. JavaScript is the core language of front-end development. It runs directly in the browser, making web pages vivid and interesting. Have you ever wondered why JavaScr


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