将对象文字传递给函数内具有变量名称的对象

Question

This is just an example:

var foo = "foo1";
fooFunction({
    bar: {
        foo : value
    }
});

The property will be named foo instead of foo1 .

How can I make it be called foo1 ?

Answer 1

You cannot specify a dynamic property name in an object literal, you would have to add the property after the object is created.

var foo = "foo1";
var obj = {
    bar: {}
};
obj.bar[foo] = value;
function(obj);

Answer 2

There's nothing special about an object literal when used as an input to a function call. The rules of object literals apply wherever it is used, including assignment, input parameters, destructing (ES2015) or any other usage I might have left out.

It is possible using ES2015 to do this with a slight change:

var foo = "foo1";
fooFunction({
    bar: {
        [foo] : value
    }
});

This is called computed property name.