The importance of learning to use Jest locally

The majority of the lessons in this course have code widgets that allow you to take exercises directly in the browser without installing anything locally. This is great for learning many topics in this course.

However, you will likely use Jest on your machine in a real-world project and interact with its command-line interface.

If you don’t have a code editor or Node.js installed on your machine, visit the appendix to help you do so.

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