Dependency Injection

Lesson in the Angular Roadmap · Stage 10: Services & Remote Data

Last updated 14 September 2026

What is Dependency Injection?

Dependency Injection is one of the fundamental concepts in Angular. DI is wired into the Angular framework and allows classes with Angular decorators, such as Components, Directives, Pipes, and Injectables, to configure dependencies that they need.

Study this in the interactive course See the whole Angular roadmap

Free resources to learn Dependency Injection

Official docsUnderstanding Dependency Injection
Official docsDI in Action
FeedExplore top posts about Dependency Injection

Dependency Injection: common questions

Can I learn Dependency Injection in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Dependency Injection in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Dependency Injection tutorial for beginners?

It is lesson 49 of 158 in the free Angular roadmap, in stage 10, Services & Remote Data. If you are new to Angular, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.