# Track Comments Comments beginning with `// track:`. See [comment_prefixes.md](../contributors/comment_prefixes.md) ## Track Comment Registry - `track: type check`: A condition that's used to check the type of an imput. - `track: bounds check`: A condition that's used to check the bounds of an array or other list-like entity. - `track: ruleset` A series of conditions that early-return or `continue` - `track: object description in comment` A comment above the creation of some object which could potentially have a `description` property. This is especially relevant if the object is stored in some kind of registry where multiple objects could be listed in the console. - `track: slice a prefix` A common pattern where a prefix string is "sliced off" of another string to obtain a significant value, such as an indentifier.