CURRICULUM

JavaScript Programming: Four Difficulties, 4000 Levels

JavaScript has four difficulties with 1000 levels each and ten questions per level; predict the output first, then add speed. JavaScript levels focus on coercion, arrays, objects and logic; many answers look obvious until you remember that plus signs concatenate strings.

JavaScript 编程基础闯关JavaScript Basics1000 关JavaScript 编程进阶闯关JavaScript Intermediate1000 关JavaScript 编程高阶闯关JavaScript Advanced1000 关JavaScript 编程挑战闯关JavaScript Challenge1000 关

How it works

  1. Start at the basic difficulty.
  2. Ten questions per level; clear one to unlock the next.
  3. Review at 1/3/7/14/30 days.

FAQ

Which difficulty?

Start at basic and move up when accuracy stays above 80%.

How many levels each?

1000.