text: var string = 'This is my string';
  var browserType = 'mozilla';
  console.log(browserType.length);
  console.log(browserType[0]);
  console.log([browserType.length-1]);
  console.log(browserType.indexOf('zilla'));
  console.log(browserType.indexOf('vanilla'));
  if(browserType.indexOf('mozilla') !== -1) {
      console.log('oi')
  }
  console.log(browserType.slice(0,3));
  console.log(browserType.slice(2));
  var radData = 'My NaMe Is MuD';
  console.log(radData.toLowerCase());
  console.log(radData.toUpperCase());
  console.log(browserType.replace('moz','van'));