工具类型

当我们在代码中出错时,TypeScript 可以捕获错误。这很好,但 TypeScript 也可以从一开始就阻止我们犯这些错误。

TypeScript can catch bugs when we make mistakes in our code. That's great, but TypeScript can also prevent us from making those mistakes in the first place.

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import express from "express";
const app = express();

app.get("/", function (req, res) {
  res.sen
//       ^|
});

app.listen(3000);

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