JavaScript Next Steps

You know modern JavaScript — keep going

• TypeScript adds types to JavaScript and is the standard for large projects: TypeScript tutorial.
• React is the most popular UI library: React course.
• Node.js runs JavaScript on servers: see the Node.js cookbook.

Practise for interviews

• Two Sum and Group Anagrams — hash maps
• Valid Parentheses — stacks
• Debounce and Event Emitter — classic front-end questions
• Event loop output — predict the order of logs
• Node.js interview questions and React interview questions

Project ideas

• A to-do list that saves to localStorage.
• A weather widget that calls a public API with fetch.
• A small REST API with Node.js and Express.

const learned = ["variables", "functions", "arrays", "objects", "classes", "promises", "DOM"];
learned.forEach((topic, i) => console.log(`${i + 1}. ${topic} ✓`));
console.log("Next up: build something!");

1. variables ✓
2. functions ✓
3. arrays ✓
4. objects ✓
5. classes ✓
6. promises ✓
7. DOM ✓
Next up: build something!