text: var arr = [
      1,
      true,
      {
          name: 'Asif',
          address: 'Hight palace'
      },
      function (name) {
          var greeting = 'Hola ';
          console.log(greeting + name);
      },
      "Hi"
  ];
  
  console.log(arr);
  arr[3](arr[2].name);
  
  console.log(arr.length);
  
  //more arrys
  
  const numbers = [1, 2, 3];
  
  const doubleNumArray = numbers.map((num) => {
      return num * 2;
  });
  
  console.log(numbers);
  console.log(doubleNumArray);