Loop through nested objects in JS.

loopnested.js

/* Solution by Suraj Yadav */

let obj = {
  name: "adarsh",
  id: 98,
  roll: "sfd",
  num2: {
      name: "num_adarsh2",
      id: 98,
      roll: "sfd",
      num3: {
        name: "num_Adarsh3"
      },
  },
}

let newlist = [];


const myFun = (DATA, myKey) => {
  
  for(let key in DATA){
    if(key === myKey){
      newlist.push(DATA[key]);
      console.log(DATA[key]);
      return;
    }
    if(typeof(DATA[key]) == 'object'){
      myFun(DATA[key], myKey);
    } 
  }
}

myFun(obj, 'num2');
console.log(newlist);