Understand JavaScript Code with AI

01 Read a small example

Keep the positive numbers.

Start with four numbers: −3, 0, 2 and 5. Keep each number greater than zero. The result contains 2 and 5, in the same order.

An authored JavaScript teaching snippet. Paste it into the workspace and select JavaScript to explore your own explanation.

positive.js

const numbers = [-3, 0, 2, 5];
const positive = numbers.filter(number => number > 0);