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  • JavaScript闭包

    代码

    <!doctype html>
    <html>
    <head>
        <title>JavaScript闭包</title>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <meta http-equiv="Pragma" content="no-cache"/>
    </head>
    <body>
    <h1>JavaScript闭包</h1>
    </body>
    <script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
    <script>
        console.log(a);
        function a() {
            var b = function () {
                console.log(100);
                return 300;
            }
            return b;
        }
        console.log(a);
        var c = a();
        console.log(c);
        console.log(a()());
        var stu = {
            name: "xiaoming",
            age: 18,
            study: function () {
                console.log('正在学习');
            }
        }
        var add = (function () {
            var counter = 0;
            return function () {
                return counter += 1;
            }
        })();
    
        add();
        add();
        var re = add();
        console.log(re);
        /*
         * var a
         * function a(){
         *
         * }
         * a=10
         * */
    </script>
    </html>
    
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  • 原文地址:https://www.cnblogs.com/kikyoqiang/p/14152384.html
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