true == 1 → true

true == "1" → true

false == 0 → true

false == "0" → true

false == undefined → false

false == null → false

null == undefined → true

"\t\r\n" == 0 → true

"\t\r\n 16 \t\r\n" == 16 → true

"\t\r\n 16 \t\r\n" == "16" → false

var a = "foobar"

var b = typeof a → 'string'

var c = a instanceof String → false

[1] https://whydoesitsuck.com/why-does-javascript-suck/

  myArray.forEach( (item) => {
    // process item
  });