Coding Labs

Practice writing clean, efficient code in a distraction-free environment.

Quick Reference: JavaScript

Array Methods

// Map
arr.map(x => x * 2)

// Filter
arr.filter(x => x > 5)

// Reduce
arr.reduce((acc, cur) => acc + cur, 0)

Async/Await

async function fetchData() {
  try {
    const res = await fetch(url);
    const data = await res.json();
  } catch (err) {
    console.error(err);
  }
}