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jquery.min.js完整代碼

jQuery.min.js是一個(gè)非常流行的Javascript庫(kù),它幫助我們通過(guò)更少的代碼完成更多的工作。下面是jQuery.min.js的完整代碼:

/*!
 * jQuery JavaScript Library v3.6.0
 * 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: 2021-03-02T17:10Z
 */
( function( global, factory ) {
"use strict";
if ( typeof module === "object" && typeof module.exports === "object" ) {
// For CommonJS and CommonJS-like environments where a proper `window`
// is present, execute the factory and get jQuery.
// For environments that do not have a `window` with a `document`
// (such as Node.js), expose a factory as module.exports.
// This accentuates the need for the creation of a real `window`.
// e.g. var jQuery = require("jquery")(window);
// See ticket #14549 for more info.
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 );
	}
} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
"use strict";
var arr = [];
var document = window.document;
var getProto = Object.getPrototypeOf;
var slice = arr.slice;
var concat = arr.concat;
var push = arr.push;
var indexOf = arr.indexOf;
var class2type = {};
var toString = class2type.toString;
var hasOwn = class2type.hasOwnProperty;
var fnToString = hasOwn.toString;
var ObjectFunctionString = fnToString.call( Object );
var support = {};
var isFunction = function isFunction( obj ) {
// Support: Chrome<=57, Firefox<=52
// In some browsers, typeof returns "function" for HTMLelements
// (i.e., `typeof document.createElement( "object" ) === "function"`).
// We don't want to classify *any* DOM node as a function.
return typeof obj === "function" && typeof obj.nodeType !== "number";
	};
// 更多代碼

這里的代碼使用到了一些Javascript的高級(jí)特性,使用了函數(shù)嵌套、立即調(diào)用函數(shù)表達(dá)式、自執(zhí)行函數(shù)等語(yǔ)法。雖然代碼比較復(fù)雜,但它是jQuery這個(gè)流行Javascript庫(kù)的核心,沒(méi)有它,我們很難在Javascript應(yīng)用中使用jQuery提供的方便方法。