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Applies TypeScript naming conventions for variables, functions, classes, types, and files. Use when writing new code or reviewing naming patterns. Triggers: "命名规范", "怎么命名", "变量名", "naming convention".

SKILL.md

TypeScript 命名规范

速查表

类型	规则	示例
变量/函数	camelCase	`userName`, `fetchUser`
类/类型	PascalCase	`UserService`, `ApiResponse`
常量	UPPER_SNAKE	`MAX_RETRY`, `API_URL`
布尔	前缀	`isActive`, `hasPermission`
数组	复数	`users`, `items`
文件	kebab-case	`user-service.ts`

布尔变量前缀

前缀	语义	示例
`is`	状态	`isActive`, `isLoading`
`has`	拥有	`hasPermission`, `hasError`
`can`	能力	`canEdit`, `canSubmit`
`should`	建议	`shouldRefresh`, `shouldRetry`
`will`	将要	`willUpdate`, `willExpire`
`did`	已发生	`didMount`, `didChange`

常量判断

// UPPER_SNAKE: 编译时确定、不可变
const MAX_RETRY = 3
const API_URL = 'https://api.example.com'

// camelCase: 运行时计算
const currentUser = fetchUser()

常用缩写

缩写	全称
`ctx`	Context
`cfg`	Configuration
`req/res`	Request/Response
`err`	Error
`fn`	Function
`ref`	Reference
`prev/next`	Previous/Next
`idx`	Index

避免：单字母变量（除 i/j/k 和 T/K/V）