Convert array of strings into an object with those string as properties and null values [duplicate]

Question

Let's say I have this:

const myArr = ["NAME_A","NAME_B","NAME_C"];

And I'd like to convert it to:

const myObj = {
  NAME_A: null,
  NAME_B: null,
  NAME_C: null,
}

I can do it by initializing an empty object and adding properties by iterating the array with forEach or something, but I believe there is a more efficient solution out there.

Does this answer your question? Convert array to object keys — Aris
– Aris, Commented Feb 18, 2021 at 16:48
one loop using each index value of the array as a key for the new object seems to work shrugs — The Bomb Squad
– The Bomb Squad, Commented Feb 18, 2021 at 17:50

Deniz Yalçın · Accepted Answer · 2021-02-18 18:01:10Z

1

You can use inline queries to entries and create object from this entries like

Object.fromEntries(["NAME_A","NAME_B","NAME_C"].map((x)=>[x, null]))

answered Feb 18, 2021 at 18:01

Deniz Yalçın

233 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

The Bomb Squad · Accepted Answer · 2021-02-18 17:49:47Z

0

//I just used the indexes in the array as keys in the object *shrugs*
function arrToObj(arr){ //converting function
  let obj={}
  for(let i=0;i<arr.length;i++){
    obj[arr[i]]=null
  }
  return obj
}

const myArr = ["NAME_A","NAME_B","NAME_C"];
const myObj=arrToObj(myArr)
console.log(myObj)

answered Feb 18, 2021 at 17:49

The Bomb Squad

4,3471 gold badge14 silver badges21 bronze badges

Collectives™ on Stack Overflow

Convert array of strings into an object with those string as properties and null values [duplicate]

2 Answers 2

Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Linked

Related