55 lines
1.1 KiB
HTML
55 lines
1.1 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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<script>
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function f1() {
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var n = 999;
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// console.log(n)
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function f11() {
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console.log(n)
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}
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// f11()
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return f11
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}
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var f2 = f1(); // =>f11
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f2()
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// 函数在没有return 语句或者是return 后面为空的时候， 函数的返回值等于undefined
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// 如果return 后面不为空的话 那么函数的返回值 即等于 return后面的东西
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// console.log(f2)
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var name = "The Window";
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var object = {
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name: "My Object",
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getNameFunc: function () {
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var that = this;
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return function () {
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return that.name;
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};
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}
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};
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alert(object.getNameFunc()());
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var func=object.getNameFunc()
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func()
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</script>
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</head>
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<body>
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</body>
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</html> |