← GlossaryWas this page helpful?
What does "dependency injection" mean in programming?
dependency injection is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
A design pattern where an object receives its dependencies from outside rather than creating them internally. Makes code more testable and loosely coupled by separating object construction from object use. Often abbreviated DI.
Example
"The service receives the database client via dependency injection — in tests, pass a mock client instead."
Can you put this sentence in the right order?
Tap the words to place them here
Keep building your technical English
You just looked up what this word means. Lingua-e turns vocabulary like this into full practice: fill-in-the-blanks, listening, and real developer conversations.
Practice this for free