How to add element and remove element from array through javascript

February 18, 2023

let objArr = [
  { "name" : "mark", "height" : "tall", "hairColor": "black"},
  { "name" : "ben", "height" : "medium", "color": "fair"},
  { "name" : "neil", "height" : "small", "color": "dark"}
];

addmoreObject = {"gender": "male", "age": 33};

const res = objArr.map(({ hairColor, color, addmoreObject ...r }) => r);
console.log("RES", res)

I wanted to remove color and hairColor from object and wanted to add more element like gender, age etc. how can I make it in correct manner please guide

https://jsfiddle.net/v0yLu8m2/

>Solution :

You’re very close:

// Change
const res = objArr.map(({ hairColor, color, addmoreObject ...r }) => r);

// To
const res = objArr.map(({ hairColor, color, ...rest }) => {
  return {
    ...rest,
    ...addmoreObject,
  };
});