Evan
426e9e0210
style: 调整UI组件样式和布局 docs: 更新README和添加文档内容 chore: 添加依赖项和配置文件 fix: 修复一些小问题和优化代码 perf: 优化性能相关代码 refactor: 重构部分组件结构 test: 添加测试相关文件 build: 更新构建配置 ci: 添加CI配置文件
42 lines
1.4 KiB
Plaintext
42 lines
1.4 KiB
Plaintext
---
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title: "TypeScript Best Practices for Clean, Maintainable Code"
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publishedAt: "2024-12-08"
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updatedAt: "2024-12-08"
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author: "John Doe"
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summary: "Essential TypeScript patterns and practices that will make your codebase more robust and easier to maintain."
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image: "https://images.unsplash.com/photo-1555066931-4365d14bab8c?w=800&h=192&fit=crop"
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---
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# TypeScript Best Practices for Clean, Maintainable Code
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TypeScript shines when it helps you model reality — not when it forces you to fight types all day. A few small defaults can make a codebase feel <mark>calmer, safer, and easier to refactor</mark>.
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<MediaContainer
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src="https://images.unsplash.com/photo-1555066931-4365d14bab8c?w=1200&fit=crop"
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alt="TypeScript code on screen"
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/>
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## Practical rules of thumb
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- Turn on strictness and fix the sharp edges early.
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- Prefer readable types over clever types.
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- Use unions for “one of these”, interfaces for “shape of this”.
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- Avoid `any` as a shortcut; it becomes ~~future debt~~ fast.
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## One pattern worth memorizing
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```ts
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type Result<T> =
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| { ok: true; value: T }
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| { ok: false; error: string };
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export function parseNumber(input: string): Result<number> {
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const n = Number(input);
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return Number.isFinite(n) ? { ok: true, value: n } : { ok: false, error: "Not a number" };
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}
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```
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## Wrap-up
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The best TypeScript code reads like good documentation: clear names, predictable shapes, and errors that point you to the fix.
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