'How can I run an npm script installed in the root of a learn repo, from a child package?

For instance, I want to run jest tests for one of my packages.

I set up the test script in the child package.json:

"test" : "jest"

However when I got to the package directory and run:

npm test

I get:

sh: jest: command not found

This makes sense because I've only installed jest in the root package since it is a dev dependency.

What do I need to do to make the npm package jest available in the child packages?

npm lerna

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Solution	Source