Katas¶
One line: Every exercise in the library, in reading order; each solution is a program the runner has run, folded on its lesson's page under Practice.
7 katas so far. A kata is added with its lesson: a stub has none. This page is generated by tools/check_pages.py --fix.
02 — Values and types¶
| Kata | Page | Level |
|---|---|---|
| primitives on one line, objects on the other | Eight types | 101 |
typeof, with its two blind spots filled |
typeof |
101 |
| A volume that may be missing | null and undefined |
101 |
| Unwrap before you compare | Primitives and wrappers | 201 |
| two caches on one order | Symbols | 201 |
| the mean of three timestamps | BigInt | 201 |
| add to a cart without changing it | Values and references | 101 |