Join an array with an object in Reactjs

Question

I having an array

let dd =[0: {name:'clarie', dob:15/12/1990}]

and an object

let info ={state:'washigton',zip:'54665'}

I want to merge this 2 into like,

  let y = {name:'clarie', dob:15/12/1990,state:'washigton',zip:'54665'}

I used spread opertor,concat, but error occurs.

let y= [..dd[0], ..info]  like  this

How to join these two?

let dd =[0: {name:'clarie', dob:15/12/1990}] is not an valid array, please update the question — Enfield Li
– Enfield Li, Commented Apr 6, 2022 at 11:03

NeERAJ TK · Accepted Answer · 2022-04-06 11:16:59Z

2

Your current code spreads info object with dd array. You can't spread object properties onto an array. You should spread it as an object, as :

     const y = { ...info, ...dd[0] }

Also, the array initialization is wrong in the question, dob should be string. Updated code:

  const dd = [{ name: "clarie", dob: "15/12/1990" }];
  const info = { state: "washigton", zip: "54665" };
  const y = { ...info, ...dd[0] }

answered Apr 6, 2022 at 11:03

NeERAJ TK

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Comments

Elley · Accepted Answer · 2022-04-06 11:02:44Z

1

let y= {...(dd[0]), ...info}

You want to create a new object, not an array.

answered Apr 6, 2022 at 11:02

Elley

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I am not saying I want to create an new array

"let y= [..dd[0], ..info] like this" this would be something to create an array :)

oo yaa I typed wrong.. Sorry

No problems :) So, is your issue solved? Or does is still not work ? If it's solved, you should select a good answer to close the issue :)