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JavaScript: Express hello world server

A short, tested JavaScript example for express hello world server. Copy it and adjust the names and paths for your project.

JavaScript
import express from "express";

const app = express();
app.use(express.json());

app.get("/", (req, res) => res.send("Hello"));
app.post("/items", (req, res) => res.status(201).json(req.body));

app.listen(3000, () => console.log("http://localhost:3000"));

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