text: // #todo
  
  'use strict';
  
  /* 1. declare 3 variables */
  let a = 'y';
  let b = 'x';
  let temp;
  
  /* 2. swap the values between a and b
    this is done using 3 assignments
  */
  temp = a;
  a = b;
  b = temp;
  
  /* 3. compare the final values
    all the comparisons should be true
  */
  console.log(a === 'x'); // true
  console.log(b === 'y'); // true
  console.log(temp === 'y'); // true
  
  /*
    - mark each variable use with a different color (like in the ?variables lens)
    - use lines to connect each variable declaration to it's uses
  
    done with these questions?  try "ask me" and "random line"
  */
  