Want to replace a variable with another new one

Question

I want to replace a variable in an object array with another name,

let arr={name:'ash', id:2}

I want to replace it as arr = {newname:'ash', id:2}

Answer 1

There are two options:

1.

let name = arr.name
arr = {...arr, name: null, newname:name}

You can use omit function from lodash library, and this option is better. Here is docimentation of omit function

Answer 2

let arr={name:'ash', id:2}

let newname = arr.name;
delete arr.name

arr['newname'] = newname

console.log(arr)

You can use a variable to store the value of name ,then use Object operator delete the key of name