Drag the edges to resize the window.

In Projects, you can keep track of your progress as you go throught the tasks. Check each item as you complete it!

Code Editor
Learn
Data Structures

Arrays of Non-Numbers

Here's something you might not have known: you can make an array of any collection of Ruby objects. You can make an array of booleans! An array of strings! The possibilities are (almost) endless.

Report a Bug
If you see a bug or any other issue with this page, please report it here.