Deep Copy By Value

deepCopy.js

const deepCopy = (value) => { // deepCopy by Value
  let val;
  if (Array.isArray(value)) {
   val = [...value]; // Copy by Value
  } else if (value && typeof value === 'object') {
   val = { ...value };  // Copy by Value
  } else {
   return value; // Returns original value and stops!
  }

  Object.keys(val).forEach((key) => {
    if (val[key]) {
      if (Array.isArray(val[key]) || (typeof val[key] === 'object')) {
        val[key] = deepCopy(val[key]); // Recursion
      }
    }
  });
  return val;
};