The amount of time it will take to learn ExpressJS will depend on the individual developer’s experience level and how quickly they can grasp the concepts. For experienced developers, it can take a few days to a few weeks to learn ExpressJS. Beginner developers may take a few weeks to a few months to become proficient in the framework.
When starting to learn ExpressJS, developers should first become familiar with the basic concepts. They should understand how to create a server, define routes, and render HTML templates. This is the foundation of ExpressJS and is essential for successful application development.