create ts

ts/.gitignore

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+dist/

ts/README.md

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+# TypeScript で書いたサーバーをワンライナーで構築してみよう
+
+tsup
+
+```
+npx tsup main.ts --clean --onSuccess 'node dist/main.js'
+```
+
+tsup + watch
+
+```
+npx tsup main.ts --clean --watch --onSuccess 'node dist/main.js'
+```
+
+ts-node
+
+```
+npx ts-node-transpile-only main.ts
+```
+
+ts-node + watch
+
+n/a
+
+esbuild (esbuild-register)
+
+```
+node -r esbuild-register main.ts
+```
+
+esbuild (esbuild-register) + watch
+
+n/a

ts/main.ts

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+import express from "express";
+
+const app = express();
+
+app.get("/", (req, res) => {
+  res.send("OK");
+});
+
+const address = app.listen(3000).address();
+
+console.log(address);
+
+(async () => {
+  const res = await fetch(`http://127.0.0.1:${address?.port}/`);
+  console.log(res.url, res.status, res.statusText);
+  console.log(await res.text());
+})();

ts/package.json

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+{
+  "name": "ts",
+  "version": "1.0.0",
+  "private": true,
+  "devDependencies": {
+    "@types/express": "^4.17.17",
+    "@types/node": "^20.3.1",
+    "esbuild": "^0.18.4",
+    "esbuild-register": "^3.4.2",
+    "express": "^4.18.2",
+    "ts-node": "^10.9.1",
+    "tsup": "^7.0.0",
+    "typescript": "^5.1.3"
+  }
+}