typescript-guidelines

---

name: typescript-guidelines description: Typescript coding guidelines and conventions. Use this skill whenever working on Typescript source files (.ts or .tsx) including Vue framework (.vue) — editing, creating, reviewing, or refactoring Typescript code. This includes any task involving Typescript: writing new modules, fixing bugs, adding features, code review, or answering questions about Typescript code in the project.

General rules

• Do not add typecasts if not necessary. First make sure the cast is needed for proper typechecking. Then consider adding assertions or guards ensuring the value's type is correct.
• The type aliases should be used only when the type is really complex (multiple nested generic arguments, for example), or if the aliast name would provide useful information besides the variable's/parameter's name.
• If writing comments, do not mention code's history or how things no longer run, except as a cautionary tale to not repeat errors.

Documentation Comments

• The docstrings should be created for exported, or non-obvious private entities.
• They goal is to understand what given entity is. Do not focus on how it is used, unless it is useful as an example to understand the entity itself. Do not mention details which are easily deduced from the name or code itself.
• They should not focus on implementation details, unless it may be somehow important to the dev using the entity (like time complexity).
• @file documentation should be a very short summary of module. The more detailed description should be on the main function/class defined in module.