snippet for creating object from destructured array

user_3880019 0
Viewed 186

For example, I had an array with 3 numbers:

var arr = [124, -50, 24];

and I need to convert this array to the object:

{
   x: 124,
   y: -50,
   z: 24
}

I don`t want to use "old-style" syntax for this, for example:

{
  x: arr[0],
  y: arr[1],
  z: arr[2]
}

so for now, I`m using that syntax:

const [x, y, z] = [...arr];
const obj = {x, y, z};

But, is there is any way to do this with a straight dectructuring array to object without need of temporary variables?

ecmascript-6 arrays javascript
3 Answers

You can also do

const obj = {};
([obj.x, obj.y, obj.z] = arr);

to avoid the temporary variables, but I'd question whether that's an improvement.

user_10485720

As it was already mentioned in the comment you can use an Immediately Invoked Function Expression (IIFE) to create the object in a single step, but it's less readable then multiple steps.

const arr = [124, -50, 24];
const obj = (([x, y, z]) => ({ x, y, z }))(arr);

console.log(obj);

user_51574540

Just use this

let obj = {...arr}
user_81752990
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