JavaScript Functions (Callbacks)

Review the use of functions in JavaScript, and learn how to use them as callbacks. Review the JavaScript Functions PowerPoint Presentation below. Then, complete the Callbacks Code-Along Activity. Once that's done, work on the Individual Practice and File Reader Challenge.

JavaScript Functions PowerPoint Presentation

Callbacks Code-Along Activity

Follow the instructions on this page to create a JavaScript application that uses callbacks.

Individual Practice

Once the code-along activity has been completed, go to this page. Follow the instructions to build on the callbacks application.

File Reader Challenge

After completing the individual practice, go to this page and try to complete the challenge. It shows how to use file input and output in Node.js.