Learn JavaScript in 18 tiny lessons. Real editor, instant feedback.
About
A pocket-sized programming bootcamp. Eighteen bite-sized JavaScript lessons — print, variables, numbers, strings, booleans, conditionals, loops, arrays, functions, objects, map/filter — each with a real code editor, a Run button that executes your code, and a Check button that grades your output against expected. Progress saves locally so you can pick up where you left off. Built for the bus, the bathroom, and the bedside table.