我在变量中引用了一个对象的属性,是否可以访问该属性所属的对象?
最佳答案
var obj = {
p1: 1,
p2: function(){
return this;
},
p3: obj,
p4: function() {
return obj;
}
}
// v1 is now integer, we cannot get actual `obj` from this `v1`
var v1 = obj.p1;
// `v2()` returns `window` object (or current context object),
// so if `obj` is created only in global context (or current
// context which you're calling `v2()`), you can get reference to `obj`
var v2 = obj.p2;
// as @Ignacio mentioned, you can use `v3` as reference to `obj`
var v3 = obj.p3;
// `v4()` also reference to `obj`
var v4 = obj.p4;
关于javascript - 如果我只有对该属性的引用,我可以得到该属性的对象吗?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16620840/