Difference between Service and Factory in Angular

Krunal Shah

Sep 02, 2017

1 min readLast Updated Dec 01, 2022

Difference between Service and Factory in Angular

This is the most common question that asked by most of the interviewers.

What is Service? Let me explain with a small example.

Service is a constructor function and that will be called with “new” keyword

myApp.service(‘serviceDemo’, function() {
  this.demo = function() {
    return ‘hello’;
  };
});

What is Factory? Let me explain with a small example.

Factory returns an object when it is created , you can also add some logic before return object.

myApp.factory(‘factoryDemo’, function() {
  return {
    demo : function() {
      return ‘demo’;
    }
  }
});

When some ask’s you the same thing share Third Rock Techkno’s blog to them.

Happy coding!

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