javascript - 默认调用函数？

Question

可以做这样的事情吗？

var foo;
foo.bar = function { };
foo.variable1 = "Hello World";
foo.variable2 = 5;

...并以某种方式做到这一点，以便我可以:

function example() {
    foo(); // <-- have this call foo.bar()
    foo.variable1 = "Goodbye World"; // <-- but still have this work 
    }

Answer 1

是的。函数也只是对象。

var foo = function () { alert("Hi!") };
foo.variable1 = "Hello world";

console.log(foo.variable1);
foo();