JS代码格式化和语法着色V2_javascript技巧
升级到第二版,开一贴以示庆贺,哈哈哈
自 Ver1.1 升级内容
1. 增加函数列表
2. 增加函数 Export 功能
3. 增加函数依存关系分析 (这个功能个人未见其他软件实现过,自己创意,问题多多,目前分析能力还是比较有限的,只能分析全局函数依存关系,可能在复杂代码的情况下出现 bug)
4. 修正 for 语句分析 bug
5. 修正 语法折叠的 bug
6. 改进 Collapse All ※ Expand All 函数工作方式,避免行数太大时的死机
7. 改进行号分析机制,避免行数太大时的死机
<script> <BR>/********************** <BR> Author: Hutia <br><br>*********************/ <br><br>window.onload=init; <br><br><BR>//------------------ <BR>// Static Variable <BR>//------------------ <br><br>var KEYWORDS="abstract break byte case catch char class const continue default delete do double else extends false final <BR>finally float for function goto if implements import in instanceof int interface long native null package private protected <BR>public reset return short static super switch synchronized this throw transient true try var void while with"; <BR>var OBJECTS="Anchor Applet Area Arguments Array Boolean Button Checkbox Collection Crypto Date Dictionary Document Drive <BR>Drives Element Enumerator Event File FileObject FileSystemObject FileUpload Folder Folders Form Frame Function Global Hidden <BR>History HTMLElement Image Infinity Input JavaArray JavaClass JavaObject JavaPackage JSObject Layer Link Math MimeType <BR>Navigator Number Object Option Packages Password Plugin PrivilegeManager Random RegExp Screen Select String Submit Text <BR>Textarea URL VBArray Window WScript"; <BR>var METHODS_PROPERTIES="above abs acos action activeElement alert alinkColor all altKey anchor anchors appCodeName applets <BR>apply appName appVersion arguments arity asin assign atan atan2 atob availHeight availLeft availTop availWidth ActiveXObject <BR>back background below bgColor big blink blur bold border borderWidths bottom btoa button call callee caller cancelBubble <BR>captureEvents ceil charAt charCodeAt charset checked children classes className clear clearInterval clearTimeout click <BR>clientInformation clientX clientY close closed colorDepth compile complete concat confirm constructir contains contextual <BR>cookie cos crypto ctrlKey current data defaultCharset defaultChecked defaultSelected defaultStatus defaultValue description <BR>disableExternalCapture disablePrivilege document domain E Echo element elements embeds enabledPlugin enableExternalCapture <BR>enablePrivilege encoding escape eval event exec exp expando FromPoint fgColor fileName find fixed floor focus fontColor <BR>fontSize form forms forward frames fromCharCode fromElement getAttribute get getClass getDate getDay getFullYear getHours <BR>getMember getMilliseconds getMinutes getMonth getSeconds getSelection getSlot getTime getTimezoneOffset getUTCDate getUTCDay <BR>getUTCFullYear getUTCHours getUTCMilliseconds getUTCMinutes getUTCMonth getUTCSeconds getWindow getYear global go HandleEvent <BR>Height hash hidden history home host hostName href hspace id ids ignoreCase images index indexOf inner innerHTML innerText <BR>innerWidth insertAdjacentHTML insertAdjacentText isFinite isNAN italics java javaEnabled join keyCode Links LN10 LN2 LOG10E <BR>LOG2E lang language lastIndex lastIndexOf lastMatch lastModified lastParen layers layerX layerY left leftContext length link <BR>linkColor load location locationBar log lowsrc MAX_VALUE MIN_VALUE margins match max menubar method mimeTypes min modifiers <BR>moveAbove moveBelow moveBy moveTo moveToAbsolute multiline NaN NEGATIVE_INFINITY name navigate navigator netscape next <BR>number offscreenBuffering offset offsetHeight offsetLeft offsetParent offsetTop offsetWidth offsetX offsetY onabort onblur <BR>onchange onclick ondblclick ondragdrop onerror onfocus onHelp onkeydown onkeypress onkeyup onload onmousedown onmousemove <BR>onmouseout onmouseover onmouseup onmove onreset onresize onsubmit onunload open opener options outerHeight outerHTML <BR>outerText outerWidth POSITIVE_INFINITY PI paddings pageX pageXOffset pageY pageYOffset parent parentElement parentLayer <BR>parentWindow parse parseFloat parseInt pathname personalbar pixelDepth platform plugins pop port pow preference previous <BR>print prompt protocol prototype push random readyState reason referrer refresh releaseEvents reload removeAttribute <BR>removeMember replace resizeBy resizeTo returnValue reverse right rightcontext round SQRT1_2 SQRT2 screenX screenY scroll <BR>scrollbars scrollBy scrollIntoView scrollTo search select selected selectedIndex self setAttribute setDay setFullYear <BR>setHotkeys setHours setInterval setMember setMilliseconds setMinutes setMonth setResizable setSeconds setSlot setTime <BR>setTimeout setUTCDate setUTCFullYear setUTCHours setUTCMillseconds setUTCMinutes setUTCMonth setUTCSeconds setYear <BR>setZOptions shift shiftKey siblingAbove siblingBelow signText sin slice smallsort source sourceIndex splice split sqrt src <BR>srcElement srcFilter status statusbar stop strike style sub submit substr substring suffixes sun sup systemLanguage TYPE <BR>tagName tags taint taintEnabled tan target test text title toElement toGMTString toLocaleString toLowerCase toolbar top <BR>toString toUpperCase toUTCString type typeOf UTC unescape unshift untaint unwatch userAgent userLanguage value valueOf <BR>visibility vlinkColor vspace watch which width window write writeln x y zIndex"; <BR>var OPS="! $ % & * + - // / : < = > ? [ ] ^ | ~ is new sizeof typeof unchecked"; <br><br>var regKW=new RegExp("(\\W"+KEYWORDS.replace(/ /g,"$)|(\\W")+"$)","g"); <BR>var regObj=new RegExp("(\\W"+OBJECTS.replace(/ /g,"$)|(\\W")+"$)","g"); <BR>var regMP=new RegExp("(\\W"+METHODS_PROPERTIES.replace(/ /g,"$)|(\\W")+"$)","g"); <BR>//var regOP=new RegExp("(\\W"+OPS.replace(/ /g,"$)|(\\W")+"$)","g"); <br><br>//------------------ <BR>// Global Variables <BR>//------------------ <BR>var divJSInput, txtJSInput, divMain, divJSOutputLineNo, divJSOutputPlus, divJSOutput, divWaiting; <BR>var spnProcess, cmdStop, divJSExport, selJSExport, divJSExportContent; <BR>var glbStr, glbP, glbRe, curRe, glbTimer, glbBusy, glbFuntionNames; <br><br><BR>function init(){ <BR> // init global variables <BR> divJSInput=document.getElementById("divJSInput"); <BR> txtJSInput=document.getElementById("txtJSInput"); <BR> divMain=document.getElementById("divMain"); <BR> divJSOutputLineNo=document.getElementById("divJSOutputLineNo"); <BR> divJSOutputPlus=document.getElementById("divJSOutputPlus"); <BR> divJSOutput=document.getElementById("divJSOutput"); <BR> divWaiting=document.getElementById("divWaiting"); <BR> spnProcess=document.getElementById("spnProcess"); <BR> cmdStop=document.getElementById("cmdStop"); <BR> divJSExport=document.getElementById("divJSExport"); <BR> selJSExport=document.getElementById("selJSExport"); <BR> divJSExportContent=document.getElementById("divJSExportContent"); <br><br> // init window state <BR> maximizeWindow(); <br><br> divMain.style.width=document.body.clientWidth-4; <BR> divMain.style.height=document.body.clientHeight-26; <br><br> divJSOutput.style.width=document.body.clientWidth-72; <br><br> <BR> // init global events <br><br>divJSOutputLineNo.onselectstart=divJSOutputLineNo.onselect=divJSOutputPlus.onselectstart=divJSOutputPlus.onselect=cancelEvent <br><br> divJSOutput.onscroll=divJSOutput_onscroll; <br><br> divJSInput.onkeydown=divJSInput_keydown; <BR> divJSExport.onkeydown=divJSExport_keydown; <br><br>} <br><br><BR>//------------------ <BR>// event scripts <BR>//------------------ <br><br>function cancelEvents(e){ <BR> var e=window.event?window.event:e; <BR> e.returnValue=false; <BR> return(false); <BR>} <br><br>function divJSInput_keydown(e){ <BR> var e=window.event?window.event:e; <BR> var srcEle=e.srcElement?e.srcElement:e.target; <BR> var sel; <BR> if(e.keyCode==27)hideJSInput(); <BR> if(e.keyCode==13&&e.ctrlKey)execJSInput(); <BR> if(e.keyCode==9&&srcEle==txtJSInput){ <BR> document.selection.createRange().text="\t";return(false); // not support FF <BR> } <BR>} <br><br>function divJSExport_keydown(e){ <BR> var e=window.event?window.event:e; <BR> var srcEle=e.srcElement?e.srcElement:e.target; <BR> var sel; <BR> if(e.keyCode==27)hideJSExport(); <BR> if(e.keyCode==13&&e.ctrlKey)hideJSExport(); <BR>} <br><br>function divJSOutput_onscroll(){ <BR> divJSOutputLineNo.scrollTop=divJSOutputPlus.scrollTop=divJSOutput.scrollTop; <BR>} <br><br><br><br>//------------------ <BR>// functional scripts <BR>//------------------ <br><br>function showJSInput(){ <BR> if(glbBusy)return; <BR> hideJSExport(); <BR> with(divJSInput.style){ <BR> display="block"; <BR> left=(document.body.clientWidth-divJSInput.offsetWidth)/2; <BR> top=(document.body.clientHeight-divJSInput.offsetHeight)/2; <BR> } <br><br> txtJSInput.focus(); <br><br> return(false); <BR>} <br><br>function showJSExport(){ <BR> if(glbBusy)return; <BR> hideJSInput(); <BR> with(divJSExport.style){ <BR> display="block"; <BR> left=(document.body.clientWidth-divJSExport.offsetWidth)/2; <BR> top=(document.body.clientHeight-divJSExport.offsetHeight)/2; <BR> } <BR> divJSExportContent.style.display="none"; <BR> selJSExport.style.display="block"; <br><br> selJSExport.focus(); <BR> return(false); <BR>} <br><br>function hideJSInput(){ <BR> divJSInput.style.display="none"; <BR>} <br><br>function hideJSExport(){ <BR> divJSExport.style.display="none"; <BR>} <br><br>function execJSInput(){ <BR> hideJSInput(); <br><br> divJSOutput.innerHTML=""; <BR> divJSOutputLineNo.innerHTML=""; <BR> divJSOutputPlus.innerHTML=""; <br><br> glbStr=txtJSInput.innerText; // not support FF <BR> glbP=0; <BR> glbFuntionNames=new Array(); <BR> curRe=glbRe=document.createElement("div"); <br><br> divJSOutput.appendChild(glbRe); <BR> glbRe.className="codeRoot"; <br><br> while(selJSExport.options.length>0)selJSExport.options[0]=null; <br><br> showWait(startRecalcLine); <BR> core_analysis(); <BR>} <br><br>function execJSExport(){ <BR> var fns=new Array(), fcs=new Array(), str; <br><br> for(var i=0; i<selJSExport.options.length; i++){ <BR> if(selJSExport.options[i].selected){ <BR> fns.push(selJSExport.options[i].value); <BR> str=selJSExport.options[i].obj.outerHTML; <BR> try{ <BR> str+=selJSExport.options[i].obj.nextSibling.outerHTML; <BR> str+=selJSExport.options[i].obj.nextSibling.nextSibling.outerHTML; <BR> }catch(e){} <BR> fcs.push(str); <BR> } <BR> } <BR> if(fns.length==0)return; <br><br> divJSExportContent.style.display="block"; <BR> selJSExport.style.display="none"; <br><br> divJSExportContent.innerHTML=fcs.join("\r\n<br>\r\n"); <BR>} <br><br>function execJSExport_Dep(){ <BR> var fns=new Array(), fcs=new Array(), str, regFNs=new Array(), needDepthTest; <br><br> for(var i=0; i<selJSExport.options.length; i++){ <BR> if(selJSExport.options[i].selected){ <BR> fns.push(selJSExport.options[i].value); <BR> try{ <BR> str=selJSExport.options[i].obj.nextSibling.outerHTML; <BR> }catch(e){} <BR> fcs.push(str); <BR> } <BR> } <BR> if(fns.length==0)return; <br><br> divJSExportContent.style.display="none"; <BR> selJSExport.style.display="block"; <br><br> needDepthTest=false; <BR> for(var i=0;i<glbFuntionNames.length;i+=1){ <BR> if(!selJSExport.options[i].selected){ <BR> for(j=0;j<fcs.length;j++){ <BR> if(html2txt(fcs[j]).match(glbFuntionNames[i].replace(/\./g,"\\."))){ <BR> selJSExport.options[i].selected=true; <BR> needDepthTest=true; <BR> break; <BR> } <BR> } <BR> } <BR> } <BR> if(needDepthTest)execJSExport_Dep(); <BR>} <br><br><BR>function showWait(onstop){ <BR> glbBusy=true; <BR> document.body.style.cursor="wait"; <br><br> with(divWaiting.style){ <BR> display="block"; <BR> left=(document.body.clientWidth-divWaiting.offsetWidth)/2; <BR> top=(document.body.clientHeight-divWaiting.offsetHeight)/2; <BR> } <BR> spnProcess.innerHTML="0.00% ( 0 / 0 )"; <BR> divWaiting.onstop=onstop; <BR> cmdStop.focus(); <BR> return(false); <BR>} <br><br>function hideWait(){ <BR> glbBusy=false; <BR> document.body.style.cursor=""; <BR> divWaiting.style.display="none"; <BR> try{clearTimeout(glbTimer);}catch(e){} <BR> try{divWaiting.onstop();}catch(e){} <BR> return(false); <BR>} <br><br>function stopExec(){ hideWait(); } <br><br>function startRecalcLine(){ <BR> var re="", re2=""; <BR> if(glbBusy)return; <BR> glbBusy=true; <br><br> for(var i=0;i<parseInt(divJSOutput.scrollHeight/14+200);i++){ <BR> re+="<p>"+(i+1)+""; <BR> re2+="<p> "; <BR> } <br><br> divJSOutputLineNo.innerHTML=re; <BR> divJSOutputPlus.innerHTML=re2; <BR> divJSOutputPlus.buttons=new Array(); <br><br> glbP=0; <br><br> showWait(); <BR> recalcLine(); <BR> return(false); <br><br>} <br><br><BR>function recalcLine(){ <BR> var objs, j; <br><br> objs=document.getElementsByTagName("div"); <BR> for(var i=glbP;i<objs.length&&(i-glbP<30);i++){ <BR> if(objs[i].className=="indent"){ <BR> j=parseInt(objs[i].offsetTop/14)-1; <BR> divJSOutputPlus.childNodes[j].className="colsp"; <BR> divJSOutputPlus.childNodes[j].innerHTML="-"; <BR> divJSOutputPlus.childNodes[j].linkedDIV=objs[i]; <BR> divJSOutputPlus.childNodes[j].startIndex=j+1; <BR> divJSOutputPlus.childNodes[j].endIndex=j+Math.round(objs[i].offsetHeight/14); <BR> if(objs[i].innerHTML!="")divJSOutputPlus.childNodes[j].endIndex++; <BR> divJSOutputPlus.childNodes[j].switchDIV=divJSOutputPlus.childNodes[j].onclick=switchDIV; <BR> divJSOutputPlus.buttons.push(divJSOutputPlus.childNodes[j]); <BR> } <BR> } <BR> spnProcess.innerHTML=parseFloat(glbP/objs.length*100).toFixed(2)+"% ( "+glbP+" / "+objs.length+" )"; <BR> if(i<objs.length){glbP=i; glbTimer=setTimeout(recalcLine); return;} <BR> stopExec(); <BR> divJSOutput_onscroll(); <BR>} <br><br>function switchDIV(disp){ <BR> var y, obj; <BR> if((this.className=="colsp"||disp=="hide")&&disp!="show"){ <BR> this.className="colsp2"; <BR> this.innerHTML="+"; <BR> for(var i=this.startIndex;i<this.endIndex;i++){ <BR> divJSOutputLineNo.childNodes[i].style.display="none"; <BR> divJSOutputPlus.childNodes[i].style.display="none"; <BR> } <BR> this.linkedDIV.style.display="none"; <BR> }else{ <BR> this.className="colsp"; <BR> this.innerHTML="-"; <BR> this.linkedDIV.style.display="block"; <BR> for(var i=this.startIndex;i<this.endIndex;i++){ <BR> divJSOutputLineNo.childNodes[i].style.display="block"; <BR> divJSOutputPlus.childNodes[i].style.display="block"; <BR> if(divJSOutputPlus.childNodes[i].className=="colsp2"){ <BR> i=divJSOutputPlus.childNodes[i].endIndex-1; <BR> } <BR> } <BR> } <BR> divJSOutput_onscroll(); <BR>} <br><br>function collapseAll(index){ <BR> index=isNaN(parseInt(index))?0:parseInt(index); <BR> if(!divJSOutputPlus.buttons)return; <BR> if(index<0)index=0; <BR> if(index>divJSOutputPlus.buttons.length)return; <BR> for(var i=index;i<divJSOutputPlus.buttons.length&&i-index<10;i++)divJSOutputPlus.buttons[i].switchDIV("hide"); <BR> setTimeout("collapseAll("+i+")"); <BR>} <br><br>function expandAll(index){ <BR> index=isNaN(parseInt(index))?0:parseInt(index); <BR> if(!divJSOutputPlus.buttons)return; <BR> if(index<0)index=0; <BR> if(index>divJSOutputPlus.buttons.length)return; <BR> for(var i=index;i<divJSOutputPlus.buttons.length&&i-index<10;i++)divJSOutputPlus.buttons[i].switchDIV("show"); <BR> setTimeout("expandAll("+i+")"); <BR>} <br><br><BR>function core_analysis(){ <BR> var str=" ", c="", lastState="", seq, intNextQuote, intTemp, intCount, intWordStart; <BR> spnProcess.innerHTML=parseFloat(glbP/glbStr.length*100).toFixed(2)+"% ( "+glbP+" / "+glbStr.length+" )"; <BR> for(var i=glbP;i<glbStr.length;i++){ <BR> c=glbStr.charAt(i); <BR> str+=htmlEncode(c); <BR> switch(c){ <BR> case "\r": case " ": case "\t": <BR> if(lastState=="\r\n"){str=" ";break;} <BR> str=str.substring(0,str.length-htmlEncode(c).length); <BR> if(lastState=="blank")break; <BR> if(c.match(/\W/)&&glbStr.charAt(i-1).match(/\w/)){ <BR> str=str.replace(regKW,clKW).replace(regObj,clObj).replace(regMP,clMP); <BR> } <BR> str+=htmlEncode(c); <BR> lastState="blank"; <BR> break; <BR> case ";": <BR> if(str.match(/\Wfor.*?\(/i))break; <BR> // attention there's no break here <BR> case "\n": <BR> if(lastState=="\r\n"){str=" ";break;} <BR> outputLn(str); <BR> str=" "; <BR> lastState="\r\n"; <BR> if(i-glbP>200){ <BR> glbP=i+1; <BR> glbTimer=setTimeout(core_analysis); <BR> return; <BR> } <BR> break; <BR> case "\"": <BR> intNextQuote=i; <BR> while(intNextQuote!=-1&&intNextQuote<glbStr.length){ <BR> intNextQuote=glbStr.indexOf("\"",intNextQuote+1); <BR> if(intNextQuote==-1||glbStr.charAt(intNextQuote-1)!="\\")break; <BR> intCount=0; intTemp=intNextQuote; <BR> while(glbStr.charAt(--intTemp)=="\\")intCount++; <BR> if(intCount%2==0)break; <BR> } <BR> if(intNextQuote==-1)break; <BR> str+="<span class=\"quote\">"+htmlEncode(glbStr.substring(i+1,intNextQuote))+"<\/span>\""; <BR> i=intNextQuote; <BR> lastState=""; <BR> break; <BR> case "\'": <BR> intNextQuote=i; <BR> while(intNextQuote!=-1&&intNextQuote<glbStr.length){ <BR> intNextQuote=glbStr.indexOf("\'",intNextQuote+1); <BR> if(intNextQuote==-1||glbStr.charAt(intNextQuote-1)!="\\")break; <BR> intCount=0; intTemp=intNextQuote; <BR> while(glbStr.charAt(--intTemp)=="\\")intCount++; <BR> if(intCount%2==0)break; <BR> } <BR> if(intNextQuote==-1)break; <BR> str+="<span class=\"quote\">"+htmlEncode(glbStr.substring(i+1,intNextQuote))+"<\/span>\'"; <BR> i=intNextQuote; <BR> lastState=""; <BR> break; <BR> case "\/": <BR> if(glbStr.charAt(i+1)=="\/"){ <BR> intNextQuote=i; <BR> intNextQuote=glbStr.indexOf("\r\n",intNextQuote+1); <BR> if(intNextQuote==-1)intNextQuote=glbStr.length; <BR> str=str.substring(0,str.length-1); <BR> str+="<span class=\"comments\">\/"+htmlEncode(glbStr.substring(i+1,intNextQuote)) <BR>+"<\/span>"; <BR> i=intNextQuote; <BR> }else if(glbStr.charAt(i+1)=="*"){ <BR> intNextQuote=i; <BR> intNextQuote=glbStr.indexOf("*\/",intNextQuote+1); <BR> if(intNextQuote==-1)return; <BR> str=str.substring(0,str.length-1); <BR> str+="<span class=\"comments\">\/"+htmlEncode(glbStr.substring(i+1,intNextQuote)) <BR>+"*\/<\/span>"; <BR> i=intNextQuote+1; <BR> }else if(str.match(/[=(][ \t]*\//)){ <BR> intNextQuote=i; <BR> while(intNextQuote!=-1&&intNextQuote<glbStr.length){ <BR> intNextQuote=glbStr.indexOf("\/",intNextQuote+1); <BR> if(intNextQuote==-1||glbStr.charAt(intNextQuote-1)!="\\")break; <BR> intCount=0; intTemp=intNextQuote; <BR> while(glbStr.charAt(--intTemp)=="\\")intCount++; <BR> if(intCount%2==0)break; <BR> } <BR> if(intNextQuote==-1)break; <BR> str+="<span class=\"regexp\">"+htmlEncode(glbStr.substring(i+1,intNextQuote)) <BR>+"<\/span>\/"; <BR> i=intNextQuote; <BR> lastState=""; <BR> } <BR> lastState=""; <BR> break; <BR> case "{": <BR> outputLn(str); <BR> str=" "; <BR> seq=document.createElement("div"); <BR> seq.className="indent"; <BR> curRe.appendChild(seq); <BR> curRe=seq; <BR> lastState="\r\n"; <BR> if(i-glbP>200){ <BR> glbP=i+1; <BR> glbTimer=setTimeout(core_analysis); <BR> return; <BR> } <BR> break; <BR> case "}": <BR> outputLn(str.substring(0,str.length-1)); <BR> str="} "; <BR> lastState=""; <BR> curRe=curRe.parentNode; <BR> break; <BR> default: <BR> if(c.match(/\w/)&&glbStr.charAt(i-1).match(/\W/)){intWordStart=i;} <BR> if(c.match(/\W/)&&glbStr.charAt(i-1).match(/\w/)){ <BR> str=str.substring(0,str.length-htmlEncode(c).length); <BR> str=str.replace(regKW,clKW).replace(regObj,clObj).replace(regMP,clMP)+htmlEncode(c); <BR> } <BR> lastState=""; <BR> break; <BR> } <BR> } <br><br> if(i==glbStr.length){ <BR> if(str!=""){ outputLn(str); str=" "; } <BR> stopExec(); <BR> } <br><br>} <br><br>function outputLn(theStr){ <BR> var seq, txt, fn; <BR> if(html2txt(theStr).match(/^[ \t\r\n]*$/))return; <BR> seq=document.createElement("p"); <BR> seq.innerHTML=theStr; <BR> curRe.appendChild(seq); <br><br> txt=html2txt(theStr); <BR> if(!txt)return; <BR> fn=txt.match(/function[ \t\r\n]+([\.\w]+?)[ \t\r\n]*\(.*?\)[ \t\r\n]*\{/); <BR> if(fn){ <BR> glbFuntionNames.push(fn[1]); <BR> selJSExport.options[selJSExport.options.length]=new Option(fn[0]+"}",fn[1]); <BR> selJSExport.options[selJSExport.options.length-1].obj=seq; <BR> } <BR> fn=txt.match(/([\.\w]+?)[ \t\r\n]*=[ \t\r\n]*function\W*\(.*?\)[ \t\r\n]*\{/); <BR> if(fn){ <BR> glbFuntionNames.push(fn[1]); <BR> selJSExport.options[selJSExport.options.length]=new Option(fn[0]+"}",fn[1]); <BR> selJSExport.options[selJSExport.options.length-1].obj=seq; <BR> } <BR>} <br><br>function clKW(str){ return(str.charAt(0)+"<span class=\"keyWord\">"+str.substring(1)+""); } <br><br>function clObj(str){ return(str.charAt(0)+"<span class=\"object\">"+str.substring(1)+""); } <br><br>function clMP(str){ return(str.charAt(0)+"<span class=\"method_property\">"+str.substring(1)+""); } <br><br>function clOP(str){ return(str.charAt(0)+"<span class=\"operator\">"+str.substring(1)+""); } <br><br><BR>//------------------ <BR>// global scripts <BR>//------------------ <br><br>function maximizeWindow(){ <BR> window.moveTo(0,0); <BR> window.resizeTo(screen.availWidth,screen.availHeight); <BR>} <br><br>function htmlEncode(strS){ <BR> return(strS.replace(/&/g,"&").replace(/,"<").replace(/>/g,">").replace(/ /g," ").replace(/ <BR>\r\n/g,"<br\/>")); <BR>} <br><br>function html2txt(strS){ <BR> return(strS.replace(/<.+?>/g,"").replace(/,"<").replace(/>/g,">").replace(/ /g," ").replace(/<br\/? <BR>>/g,"\r\n").replace(/&/g,"&")); <BR>} <br><br></script>

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Soalan dan penyelesaian yang sering ditanya untuk percetakan tiket kertas terma depan dalam pembangunan front-end, percetakan tiket adalah keperluan umum. Walau bagaimanapun, banyak pemaju sedang melaksanakan ...

JavaScript adalah asas kepada pembangunan web moden, dan fungsi utamanya termasuk pengaturcaraan yang didorong oleh peristiwa, penjanaan kandungan dinamik dan pengaturcaraan tak segerak. 1) Pengaturcaraan yang didorong oleh peristiwa membolehkan laman web berubah secara dinamik mengikut operasi pengguna. 2) Penjanaan kandungan dinamik membolehkan kandungan halaman diselaraskan mengikut syarat. 3) Pengaturcaraan Asynchronous memastikan bahawa antara muka pengguna tidak disekat. JavaScript digunakan secara meluas dalam interaksi web, aplikasi satu halaman dan pembangunan sisi pelayan, sangat meningkatkan fleksibiliti pengalaman pengguna dan pembangunan silang platform.

Tidak ada gaji mutlak untuk pemaju Python dan JavaScript, bergantung kepada kemahiran dan keperluan industri. 1. Python boleh dibayar lebih banyak dalam sains data dan pembelajaran mesin. 2. JavaScript mempunyai permintaan yang besar dalam perkembangan depan dan stack penuh, dan gajinya juga cukup besar. 3. Faktor mempengaruhi termasuk pengalaman, lokasi geografi, saiz syarikat dan kemahiran khusus.

Bagaimana cara menggabungkan elemen array dengan ID yang sama ke dalam satu objek dalam JavaScript? Semasa memproses data, kita sering menghadapi keperluan untuk mempunyai id yang sama ...

Pembelajaran JavaScript tidak sukar, tetapi ia mencabar. 1) Memahami konsep asas seperti pembolehubah, jenis data, fungsi, dan sebagainya. 2) Pengaturcaraan asynchronous tuan dan melaksanakannya melalui gelung acara. 3) Gunakan operasi DOM dan berjanji untuk mengendalikan permintaan tak segerak. 4) Elakkan kesilapan biasa dan gunakan teknik debugging. 5) Mengoptimumkan prestasi dan mengikuti amalan terbaik.

Perbincangan mengenai realisasi kesan animasi tatal dan elemen Parallax dalam artikel ini akan meneroka bagaimana untuk mencapai yang serupa dengan laman web rasmi Shiseido (https://www.shiseido.co.jp/sb/wonderland/) ... ...

Perbincangan mendalam mengenai punca-punca utama perbezaan dalam output konsol.log. Artikel ini akan menganalisis perbezaan hasil output fungsi Console.log dalam sekeping kod dan menerangkan sebab -sebab di belakangnya. � ...

Terokai pelaksanaan fungsi seretan panel dan drop panel seperti VSCode di bahagian depan. Dalam pembangunan front-end, bagaimana untuk melaksanakan vscode seperti ...
