Tool to count the occurrences of each string in jQuery_jquery

Copy code The code is as follows: 工具：统计jQuery中各字符串出现次数 源文件(将jQuery源码复制到下面的文本域)：

..

字符串： />

点击“统计所有字符出现次数”按钮后发现，字符串“string”竟然出现了44次，多数是诸如以下的代码

typeof selector === "string" typeof data !== "string" type === "string" typeof context === "string" getByName = typeof name === "string" // ...

如果使用一个变量替换，使用工具压缩时将会进一步减少文件的大小。

// setTimeout(function(){ function buildRe(keywords) { var rObj = {};

if (keywords.constructor !== Array) { return; }

keywords.forEach(function(it) { rObj[it] = RegExp(''+it, 'g'); });

return rObj; } function count(rObj, source, callback, sortType) { var r, rarr, num, type, func, result = [];

var subCount = function(arr) { var i, re, num, resu; i = num = 0;

for (i; i re = arr[i]; while( (resu=re.exec(source)) != null ) { num++; } }

return num; };

for (type in rObj) { rarr = rObj[type];

if (rarr.constructor !== Array) { rarr = [rarr]; }

num = subCount(rarr); result.push({type: type, num: num}); }

// sort 0:次数顺序 1:次数倒序 if (typeof sortType !== 'undefined') { if (sortType===0) { func = function(a, b) { return a.num - b.num; }; } else if (sortType===1) { func = function(a, b) { return b.num - a.num; }; } result.sort(func); }

callback(result);

} function main(keywords, source, callback, sortType) { var rObj = keywords.constructor === Array ? buildRe(keywords) : keywords; count(rObj, source, callback, sortType); } var rObj = { string: [/\'string\'/g, /\"string\"/g], number: [/\'number\'/g, /\"number\"/g], 'boolean': [/\'boolean\'/g, /\"boolean\"/g], object: [/\'object\'/g, /\"object\"/g], 'undefined': [/\'undefined\'/g, /\"undefined\"/g], 'function': [/\'function\'/g, /\"function\"/g], 'array': [/\'array\'/g, /\"array\"/g], 'ready': [/\'ready\'/g, /\"ready\"/g], input: [/\'input\'/g, /\"input\"/g], type: [/\'type\'/g, /\"type\"/g], text: [/\'text\'/g, /\"text\"/g], radio: [/\'radio\'/g, /\"radio\"/g], checkbox: [/\'checkbox\'/g, /\"checkbox\"/g], password: [/\'password\'/g, /\"password\"/g], submit: [/\'submit\'/g, /\"submit\"/g], button: [/\'button\'/g, /\"button\"/g], id: [/\'id\'/g, /\"id\"/g], div: [/\'div\'/g, /\"div\"/g], body: [/\'body\'/g, /\"body\"/g], html: [/\'html\'/g, /\"html\"/g], HTML: [/\'HTML\'/g, /\"HTML\"/g], parentNode: [/\'parentNode\'/g, /\"parentNode\"/g], nextSibling: [/\'nextSibling\'/g, /\"nextSibling\"/g], iframe: [/\'iframe\'/g, /\"iframe\"/g], before: [/\'before\'/g, /\"before\"/g], after: [/\'after\'/g, /\"after\"/g], script: [/\'script\'/g, /\"script\"/g], width: [/\'width\'/g, /\"width\"/g], height: [/\'height\'/g, /\"height\"/g], top: [/\'top\'/g, /\"top\"/g], left: [/\'left\'/g, /\"left\"/g], absolute: [/\'absolute\'/g, /\"absolute\"/g], relative: [/\'relative\'/g, /\"relative\"/g], 'static': [/\'static\'/g, /\"static\"/g], fixed: [/\'fixed\'/g, /\"fixed\"/g], href: [/\'href\'/g, /\"href\"/g], border: [/\'border\'/g, /\"border\"/g], margin: [/\'margin\'/g, /\"margin\"/g], marginTop: [/\'marginTop\'/g, /\"marginTop\"/g], marginBottom: [/\'marginBottom\'/g, /\"marginBottom\"/g], marginLeft: [/\'marginLeft\'/g, /\"marginLeft\"/g], marginRight: [/\'marginRight\'/g, /\"marginRight\"/g], padding: [/\'padding\'/g, /\"padding\"/g], paddingTop: [/\'paddingTop\'/g, /\"paddingTop\"/g], paddingLeft: [/\'paddingLeft\'/g, /\"paddingLeft\"/g], paddingRight: [/\'paddingRight\'/g, /\"paddingRight\"/g], display: [/\'display\'/g, /\"display\"/g], olddisplay: [/\'olddisplay\'/g, /\"olddisplay\"/g], none: [/\'none\'/g, /\"none\"/g], hidden: [/\'hidden\'/g, /\"hidden\"/g], inline: [/\'inline\'/g, /\"inline\"/g], opacity: [/\'opacity\'/g, /\"opacity\"/g], show: [/\'show\'/g, /\"show\"/g], hide: [/\'hide\'/g, /\"hide\"/g], toggle: [/\'toggle\'/g, /\"toggle\"/g], json: [/\'json\'/g, /\"json\"/g], success: [/\'success\'/g, /\"success\"/g], fxshow: [/\'fxshow\'/g, /\"fxshow\"/g], fx: [/\'fx\'/g, /\"fx\"/g], '.run': [/\'.run\'/g, /\".run\"/g], 'http:': [/\'http:\'/g, /\"http:\"/g], error: [/\'error\'/g, /\"error\"/g], abort: [/\'abort\'/g, /\"abort\"/g], GET: [/\'GET\'/g, /\"GET\"/g], POST: [/\'POST\'/g, /\"POST\"/g], get: [/\'get\'/g, /\"get\"/g], filter: [/\'filter\'/g, /\"filter\"/g], px: [/\'px\'/g, /\"px\"/g] }; function callback1(result) { var obj = result[0]; var myshowEL = $('#myshow1'); myshowEL = myshowEL.empty(); myshowEL.append(' ' + obj.type + ': ' + obj.num + ' '); } function callback2(result) { var myshowEL = $('#myshow2'); myshowEL = myshowEL.empty(); for (var i=0; i var obj = result[i]; myshowEL.append(' "' obj.type '": ' obj.num ' '); } } $('#mybtn1').click(function(){ var $txtarea = $('#myjquery'); var source = $txtarea.val(); var val = $('#myinput').val(); if (val == '' || val.length alert('至少两个字符'); return; } var keywords = [val]; main(keywords, source, callback1, 1) }); $('#mybtn2').click(function(){ var $txtarea = $('#myjquery'); var source = $txtarea.val(); main(rObj, source, callback2, 1); });

}, 1000); // ]]>

Tool to count the occurrences of each string in jQuery_jquery

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