Is it possible to create a ES6 Javascript expression whose value is an object with a dynamic property name?

Question

I currently do:

function outer(prop_name) {
    const tmp = {};
    tmp[prop_name] = 'hello world';
    foo(tmp);
}

Is there a way of rewriting this as:

foo(<expression>)

using an expression involving prop_name?

if foo is you function u can return object in outer and then do foo(outer()); — Mladen Skrbic, Oct 17 '18 at 11:04
Yes, that is a solution to the example, but that doesn't answer the question "Is it possible to create a ES6 Javascript expression whose value is an object with a dynamic property name?". — fadedbee, Oct 17 '18 at 11:15

score 5 · Accepted Answer · answered Oct 17 '18 at 11:04

5

You can write it as

foo({ [prop_name] : 'hello_world'});

answered Oct 17 '18 at 11:04

M4stah

1

Wow, that works. It looks like it was new in ES6. – fadedbee Oct 17 '18 at 11:18

1 Answers1