How to check whether dependency exists

[ernsheong]

di.get("i-dont-exist")

throws an error. Is there a gentler way to check whether a dependency exists?

My use case is that I added a dependency dynamically. A consumer of the dependency wants to check whether it is present before continuing.

[ernsheong]

Ah I found it:

di-ninja/src/makeContainerApi.js

Line 7 in 138885c

di.exists = container.exists.bind(container)

One for the docs perhaps? We should document entire container API here: https://github.com/di-ninja/di-ninja#5-container

[devthejo]

Yes you're right, I have not the time to do that for now, but feel free to make a pull request for this, I'll accept it.

PS: di-ninja remain maintained and a good choice in many situation but with the new stable react context api for the browser and the experimental feature async_hook in node, I can do most of my dependency injection works natively.