text: 'use strict';
  
  // replace the _'s to complete the challenges
  //  you know it's right when your log matches the one below it
  
  
  console.log('-- example --');
  const example = null;
  console.log('object', null);
  console.log(typeof example, example);
  
  console.log('-- challenge1 --');
  const challenge1 = 'undefined';
  console.log('String',undefined);
  console.log(typeof challenge1, challenge1);
  
  console.log('-- challenge2 --');
  const challenge2 = Infinity;
  console.log('number',Infinity);
  console.log(typeof challenge2, challenge2);
  
  console.log('-- challenge3 --');
  const challenge3 = 4;
  console.log('number',4);
  console.log(typeof challenge3, challenge3);
  
  console.log('-- challenge4 --');
  const challenge4 = '4';
  console.log('String','4');
  console.log(typeof challenge4, challenge4);
  
  console.log('-- challenge5 --');
  const challenge5 = (typeof (typeof false));
  console.log('string','string');
  console.log(typeof challenge5, challenge5);
  
  