Guides TypeScript type usage: type vs interface decision, avoiding any, and Zod runtime validation. Use when defining types, choosing type patterns, or validating external data. Triggers: "type vs interface", "any", "unknown", "Zod", "运行时验证", "类型".
Guides TypeScript type usage: type vs interface, avoiding any, and Zod runtime validation.
/plugin marketplace add 15195999826/LomoMarketplace/plugin install typescript-style@LomoMarketplaceThis skill inherits all available tools. When active, it can use any tool Claude has access to.
references/zod-patterns.md| 规范 | 项目选择 |
|---|---|
| 默认类型定义 | type（不用 interface） |
| 未知类型 | unknown（禁止 any） |
| 字符串常量 | 联合类型（不用 enum） |
| 外部数据 | Zod 验证（不用 as Type） |
默认用 type
│
├─ 需要声明合并（扩展第三方库）→ interface
├─ 类的契约（implements）→ interface
└─ 其他情况 → type
// ✗ any
function process(data: any) { }
// ✓ unknown + 类型守卫
function process(data: unknown) {
if (typeof data === 'string') {
console.log(data.toUpperCase())
}
}
// 类型谓词
function isUser(v: unknown): v is User {
return typeof v === 'object' && v !== null && 'id' in v
}
外部数据必须验证（API、表单、环境变量、配置文件）：
import { z } from 'zod'
const UserSchema = z.object({
id: z.string(),
name: z.string(),
email: z.string().email(),
})
type User = z.infer<typeof UserSchema>
// 验证 API 响应
const user = UserSchema.parse(await res.json())
详细 Zod 模式参见
references/zod-patterns.md
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