deepClone.test.js

let ex = ['a', 'b', 'c']
let ex1 = [['a','b'], [['c']]]
let ex2 = {
  a: 1,
  b: 2,
  c: 3
}
let ex3 = {
  a: [1,2,3, {g: 6, h: 7}],
  b: {
    d: 4,
    e: 5
  },
  c: {
    f: [6,7,8]
  }
}

console.log(deepClone(ex)) // [ 'a', 'b', 'c' ]
console.log(deepClone(ex1)) // [ [ 'a', 'b' ], [ [ 'c' ] ] ]
console.log(deepClone(ex2)) // { a: 1, b: 2, c: 3 }
console.log(deepClone(ex3)) // { a: [ 1, 2, 3 ], b: { d: 4, e: 5 }, c: { f: [ 6, 7, 8 ] } }