text: const data = [
      {
          name: 'Marcus',
          age: 33,
          city: 'S.B.Campo'
      },
      {
          name: 'Jessica',
          age: 25,
          city: 'Belo Horizonte'
      }
  ]
  
  const sampleArray = [4, -5, 0, -1];
  
  const underZero = sampleArray.find(x => x < 0);
  
  const underZeroIndex = sampleArray.findIndex(x => x < 0);
  
  console.log(underZero);
  
  console.log(underZeroIndex);
  
  const marcus = data.find(person => person.name === 'Marcus');
  
  const marcusIndex = data.findIndex(person => person.name === 'Marcus');
  
  console.log(marcus);
  
  console.log(marcusIndex);
  