অ্যাঙ্গুলারজেএস

<!DOCTYPE html>
<html>
<body>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.8.3/angular.min.js"></script>
  <script>
    var user = {
      name: "আরিফ",
      land: "বাংলাদেশ"
    };

    var copy = angular.copy(user);
    copy.name = "সাকিব";

    document.write(user.name);
    document.write(copy.name);
  </script>

</body>
</html>

<!DOCTYPE html>
<html>
<body>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.8.3/angular.min.js"></script>
  <script>
    var user = {
      name: "আরিফ"
    };

    angular.extend(user, {
      land: "বাংলাদেশ"
    });

    document.write(user.name);
    document.write(user.land);
  </script>
</body>
</html>

<!DOCTYPE html>
<html>
<body>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.8.3/angular.min.js"></script>
  <script>
    var user = {
      name: "আরিফ",
      address: {
        land: "বাংলাদেশ"
      }
    };

    var result = angular.merge({}, user, {
      age: 25,
      address: {
        city: "ঢাকা"
      }
    });

    document.write(result.name);
    document.write(result.address.land);
    document.write(result.address.city);
  </script>
</body>
</html>

<!DOCTYPE html>
<html>
<body>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.8.3/angular.min.js"></script>
  <script>
    var user1 = {
      name: "আরিফ",
      age: 25
    };

    var user2 = {
      name: "আরিফ",
      age: 25
    };

    document.write(angular.equals(user1, user2));
  </script>
</body>
</html>

<!DOCTYPE html>
<html>
<body>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.8.3/angular.min.js"></script>
  <script>
    var fruits = ["আপেল", "আঙ্গুর", "কমলা", "কলা"];

    angular.forEach(fruits, function(fruit) {
      document.write(fruit + "<br>");
    });
  </script>
</body>
</html>

<!DOCTYPE html>
<html>
<body>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.8.3/angular.min.js"></script>
  <script>
    var json = '{"name":"আরিফ","land":"বাংলাদেশ"}';
    var user = angular.fromJson(json);

    document.write(user.name);
    document.write(user.land);
  </script>
</body>
</html>

<!DOCTYPE html>
<html>
<body>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.8.3/angular.min.js"></script>
  <script>
    var user = {
      name: "আরিফ",
      land: "বাংলাদেশ"
    };

    var json = angular.toJson(user);

    document.write(json);
  </script>
</body>
</html>