<!DOCTYPE html><html><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title></head><body> <script> function Foo() { getName = function() { console.log(1); } return this; } Foo.getName = function() { console.log(2); } Foo.prototype.getName = function() { console.log(3); } var getName = function() { console.log(4); } function getName() { console.log(5); } Foo.getName(); getName(); Foo().getName(); getName(); new Foo.getName(); new Foo().getName(); new new Foo().getName(); </script></body></html>
這幾個(gè)輸出有點(diǎn)不是很清楚，給解釋一下唄
郎朗坤
2019-02-08 13:27:34