Conditional spread element

Question

const cond = false

const extraInfo = [
  {
    a: 11,
    b: 25
  },
  {
    a: 12,
    b: 34
  },
  {
    a: 1,
    c: 99
  }
]

const userInfo = [
  {
    z: 8
  },
          


        

Answer 1

Another way:

cond is true:

var extraInfo = [
  {
    a: 11,
    b: 25
  },
  {
    a: 12,
    b: 34
  },
  {
    a: 1,
    c: 99
  }
]

var cond = true;
var userInfo = [
  {
    z: 8
  },
  {
    z: 10
  },
  ...(cond && extraInfo || [])
]
console.log(userInfo);

cond is false:

var extraInfo = [
  {
    a: 11,
    b: 25
  },
  {
    a: 12,
    b: 34
  },
  {
    a: 1,
    c: 99
  }
]

var cond = false;
var userInfo = [
  {
    z: 8
  },
  {
    z: 10
  },
  ...(cond && extraInfo || [])
]
console.log(userInfo);