Is this bit of code considered kosher javascript? {[path]: payload} I don't thin...

wrkronmiller · on Jan 16, 2020

Yes, it creates an object with key as the value of path and value the value of payload. If path=1, payload=2, this call would make the object {‘1’: 2 }

jcampbell1 · on Jan 16, 2020

That is what I thought, and if path = ['foo','bar'] and payload = 2, it makes {'foo,bar',2}.

It is for sure making max use of dynamic programming. Typescript accepts it as {[path as any]: payload} which is pulling ejection lever on typescript.

Glad I learned something new from this.

PudgePacket · on Jan 16, 2020

It's just a nice quality of life improvement compared to

  const obj = {};
  obj[foo] = 10;