What is the difference between map and forEach?

const nums = [1, 2, 3];

const doubled = nums.map(n => n * 2);
const result = nums.forEach(n => console.log(n));

console.log(doubled);
console.log(result);

Output:

Use map when you want a new array. Use forEach when you only want to do something for each item. See Array Methods.

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