• Objects

    An object in programming is like a container that holds things. It can be used to store information like a box can store toys. For example, we could create an object called "cat" and it could have different pieces of information inside it like the cat's name, its color, or even how many lives it has left. Objects help us keep track of all the pieces of information we need for a program.

      • Map, Dictionary, Variable Objects

      • Javascript

        Example of object in javascript.
        var person = {
	name: 'John',
	age: 36
};

console.log(person['name']); // John
console.log(person['age']); // 36

      • Dart

        Example of object in dart.
        void main() {
  var person = {
	  'name': 'John',
	  'age': 36
  };

  print(person['name']); // John
  print(person['age']); // 36
}

      • D

        Example of object in d.
        import std.stdio : writeln;
import std.string;
import std.conv;

void main()
{
	string[string] person = [
		"name": "John",
		"age": "36"
	];

	writeln(person["name"]); // John
	writeln(to!int(person["age"])); // 36
}

      • Php

        Example of object in php.
        <?php
$person = (object)array(
	'name' => 'John',
	'age ' => 36
);

print($person['name']); // John
print($person['age']); // 36

      • Python

        Example of object in python.
        person = {
	'name': 'John',
	'age': 36
}

print(person['name'])  # John
print(person['age'])  # 36

      • Go

        Example of object in go.
        package main

import "fmt"

func main() {
	var person = map[string]interface{}{
		"name": "John",
		"age":  36,
	}

	fmt.Println(person["name"]) // John
	fmt.Println(person["age"])  // 36
}

      • Class Objects

      • Javascript

        Example of class object in javascript.
        class Person {
	constructor(name, age) {
		this.name = name;
		this.age = age;
	}

	greet() {
		console.log('Hello my name is ' + this.name);
	}
}

var human = new Person('John', 36);

console.log(human.name); // John
console.log(human.age); // 36
human.greet(); // Hello my name is John

      • Dart

        Example of class object in dart.
        class Person {
  String name;
  int age;

  Person(this.name, this.age);

  void greet() {
	print('Hello my name is ' + this.name);
  }
}

void main() {
  var human = new Person('John', 36);

  print(human.name); // John
  print(human.age); // 36
  human.greet(); // Hello my name is John
}

      • D

        Example of class object in d.
        import std.stdio : write, writeln;
import std.string;

class Person {
	string name;
	int age;

	this(string name, int age) {
		this.name = name;
		this.age = age;
	}

	void greet() {
		write("Hello my name is ", this.name);
	}
}

void main()
{
	Person human = new Person("John", 36);

	writeln(human.name); // John
	writeln(human.age); // 36
	human.greet(); // Hello my name is John
}

      • Php

        Example of class object in php.
        <?php
class Person {
	public $name, $age;

	function __construct($name, $age) {
		$this->name = $name;
		$this->age = $age;
	}

	public function greet() {
		print('Hello my name is ' . $this->name);
	}
}

$human = new Person('John', 36);

print($human->name); // John
print($human->age); // 36
$human->greet(); // Hello my name is John

      • Python

        Example of class object in python.
        class Person:
	def __init__(self, name, age):
		self.name = name
		self.age = age

	def greet(self):
		print('Hello my name is ' + self.name)


human = Person('John', 36)

print(human.name)  # John
print(human.age)  # 36
human.greet()  # Hello my name is John

      • Go

        Example of class object in go.
        package main

import "fmt"

type Person struct {
	name string
	age  int
}

func (p Person) greet() {
	fmt.Println("Hello my name is " + p.name)
}

func main() {
	var human = Person{"John", 36}

	fmt.Println(human.name) // John
	fmt.Println(human.age)  // 36
	human.greet()		   // Hello my name is John
}