PRACTICE

Turn each concept into a small check.

Start with the JavaScript variable challenge, then use the practice task at the end of every chapter with the browser workspace.

JavaScript: trace a variable

Read the code one line at a time and identify the final value.

240 chapters, each with a task

32 chapters, each with a task

21 chapters, each with a task

23 chapters, each with a task

22 chapters, each with a task

33 chapters, each with a task

Prefer the whole syllabus? Python, JavaScript, Java, C++, C, SQL