Self-Taught vs Bootcamp Learning Node.js Faster

Before choosing, answer honestly:

[ ] I am comfortable with modern JavaScript (async/await, modules)
[ ] I have finished a self-paced course before
[ ] I know someone who can review my backend code
[ ] I can plan my own projects and deadlines
[ ] I can study steadily without external pressure

4-5 ticks: self-taught can be very fast
2-3 ticks: hybrid (self-study + paid reviews or mentor)
0-1 ticks: a structured bootcamp will likely save time

// If you can explain this code, you are ready for Node.js
const wait = (ms) => new Promise((resolve) => setTimeout(resolve, ms));

async function loadUser(id) {
  await wait(100);                     // simulate a slow call
  if (id <= 0) throw new Error("Invalid id");
  return { id, name: "User " + id };
}

(async () => {
  try {
    const users = await Promise.all([1, 2, 3].map(loadUser));
    console.log(users.map((u) => u.name));
    await loadUser(0);
  } catch (err) {
    console.error("Caught:", err.message);
  }
})();

// npm install express
const express = require("express");
const app = express();
app.use(express.json());

app.get("/health", (req, res) => res.json({ status: "ok" }));

app.get("/items/:id", (req, res, next) => {
  const id = Number(req.params.id);
  if (!Number.isInteger(id) || id <= 0) {
    return res.status(400).json({ error: "id must be a positive integer" });
  }
  next(new Error("Database not connected yet"));   // simulate a failure
});

// Central error handler: one place for logging and safe messages
app.use((err, req, res, next) => {
  console.error(err);
  res.status(500).json({ error: "Something went wrong" });
});

module.exports = app;
if (require.main === module) app.listen(3000);

// test/server.test.js - Node 18+ built-in test runner
// npm install --save-dev supertest ; run: node --test
const test = require("node:test");
const assert = require("node:assert");
const request = require("supertest");
const app = require("../server");

test("health check returns ok", async () => {
  const res = await request(app).get("/health");
  assert.strictEqual(res.status, 200);
  assert.deepStrictEqual(res.body, { status: "ok" });
});

test("rejects invalid id", async () => {
  const res = await request(app).get("/items/abc");
  assert.strictEqual(res.status, 400);
});

// npm install --save-dev eslint @eslint/js globals
// eslint.config.js (flat config)
const js = require("@eslint/js");
const globals = require("globals");

module.exports = [
  js.configs.recommended,
  {
    languageOptions: {
      ecmaVersion: "latest",
      sourceType: "commonjs",
      globals: { ...globals.node },
    },
    rules: {
      "no-unused-vars": "warn",
      eqeqeq: "error",
    },
  },
];

// run: npx eslint .

Self code review checklist (Node.js)

[ ] Every async call has error handling
[ ] Inputs are validated before use
[ ] Correct HTTP status codes returned
[ ] No secrets in code; .env in .gitignore
[ ] Passwords hashed, never stored as plain text
[ ] Functions small and clearly named
[ ] Tests cover success and failure cases
[ ] README explains setup and endpoints

Ask a peer to use this list on your code too.

Weeks 1-2   Modern JavaScript: async/await, modules, arrays
Weeks 3-4   Node core: fs, path, events, streams, npm
Weeks 5-6   Express REST API: routing, validation, errors
Weeks 7-8   Database: SQL or MongoDB, data modelling
Week 9      Authentication and security basics
Week 10     Testing with node:test or Jest + Supertest
Week 11     Deployment, environment variables, logging
Week 12     Portfolio clean-up and mock interviews

Week ___

Hours coded: ___
Concept learned: ______
Feature built: ______
Bug that took longest: ______
Who reviewed my code this week: ______
Feedback received: ______
Next week's goal: ______

Milestone 1: CLI tool using core modules
Milestone 2: REST API with validation and tests
Milestone 3: Database-backed app with auth
Milestone 4: Deployed, with README and live link

Each milestone: reviewed by someone else before moving on.