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jquery3.1.js中文注釋

jQuery是一種著名的JavaScript庫,它能夠使JavaScript開發(fā)更加簡(jiǎn)單、方便和快速。而jQuery3.1.js則是它的最新版本,其中中文注釋更是對(duì)于開發(fā)者學(xué)習(xí)理解有著不可替代的作用。

/*!
 * jQuery JavaScript Library v3.1.0
 * https://jquery.com/
 *
 * Includes Sizzle.js
 * https://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * https://jquery.org/license
 *
 * Date: 2016-07-07T21:35Z
 */
( function( global, factory ) {
"use strict";
if ( typeof module === "object" && typeof module.exports === "object" ) {
// Support: Node.js
// For environment other than browser, export jQuery factory function.
// In a browser scenario, window.jQuery is assigned with the factory function.
// Here, jQuery becomes module.exports itself (+ its properties).
module.exports = global.document ?
factory( global, true ) :
function( w ) {
if ( !w.document ) {
throw new Error( "jQuery requires a window with a document" );
}
return factory( w );
};
} else {
factory( global );
}
// Pass this if window is not defined yet
} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
var deletedIds = [];
var document = window.document;
var slice = deletedIds.slice;
var concat = deletedIds.concat;
var push = deletedIds.push;
var indexOf = deletedIds.indexOf;
...

以上代碼是jQuery3.1.js的開頭部分,它首先是一個(gè)自執(zhí)行函數(shù),然后通過判斷當(dāng)前是否處于Node.js環(huán)境下,來進(jìn)行不同的全局變量和模塊導(dǎo)出操作。此外,它聲明了一些常用的變量,例如刪除的id數(shù)組deletedIds,文檔document,以及slice、concat、push和indexOf數(shù)組方法的變量。這些變量在后續(xù)的代碼中會(huì)被大量使用。