Assign aliased variables to new object

Question

How can we assign aliased keys to a new object like

var obj1 = { c: 1 }; var obj2= ({ f: c } = obj1 ); console.log(obj2);

OR

var obj1 = { c: 1 }; var obj2= { f: c } = obj1 ; console.log(obj2);

is returning {c: 1} instead of {f: 1}.

How can to achieve this?

I don't want to do this like

var obj1 = { c: 1 }; var { f: c } = obj1 ; const obj2 = {f}; console.log(obj2);

What is `a` and `c`? – Saurabh Agrawal Jun 07 '19 at 05:19 — Saurabh Agrawal, Jun 07 '19 at 05:19
@SaurabhAgrawal By mistake. Updated. – Sachin Jun 07 '19 at 05:21 — Sachin, Jun 07 '19 at 05:21

score 1 · Answer 1 · answered Jun 07 '19 at 05:19

Assignment is simpler than destructuring in this case:

var obj1 = { c: 1 }; 

var obj2= { f: obj1.c }; 

console.log(obj2);

And if you really must use destructuring you can use an IIFE:

var obj1 = { c: 1 }; 

var obj2= (({ c: f }) => ({ f }))(obj1); 

console.log(obj2);

1 Answers1