Function deepDup

w3/d3/deepDup.js:37–54

A shallow copy makes a copy of the reference to X (an array), into Y. If we were to say something like this for example: let x = [ [1], [2, 3] ]; let y = x.slice(); In this situation, Y, is a shallow copy of X. Here both X's and Y's VALUES point to the same place in memory. But hold on you might sa

(arr)

function deepDup(arr) {

  let dupArr = [];
  debugger;
  for(let ele of arr) {
    debugger;
    if(Array.isArray(ele)) {
      debugger;
      let copy = deepDup(ele)
      dupArr.push(copy);
    } else {
      debugger;
      dupArr.push(ele);
    }
  };
  debugger;
  return dupArr;
}


let arr = [[1], [2, [3]]];