Add property to object when it's not null

Question

I\'m working on a small API and I want to update the data using HTTP PATCH REQUEST without using a bunch of if statements. I\'m trying to fill the outgoing data

Answer 1

Non-inline solution

If you don't need to add the value inline, it is pretty straightforward and clean to write your assignment like this.

const val1 = 1
const val2
const data = {}

val1 && (data.a = val1) // 1
val2 && (data.b = val2) // Not added
// data = { a : 1 }

NOTE: This will not work if the value is falsey