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前端程序员经常忽视的一个JavaScript面试题 #21

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zhuziqingdemao opened this issue May 11, 2021 · 0 comments

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zhuziqingdemao commented May 11, 2021

题目

function Foo() {
    getName = function () { alert (1); };
    return this;
}
Foo.getName = function () { alert (2);};
Foo.prototype.getName = function () { alert (3);};
var getName = function () { alert (4);};
function getName() { alert (5);}
 
//请写出以下输出结果：
Foo.getName();
getName();
Foo().getName();
getName();
new Foo.getName();
new Foo().getName();
new new Foo().getName();

zhuziqingdemao added the javascript label

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