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Discussion on: Stop abusing .map()!

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davidmaxwaterman profile image
Max Waterman

Why not just the following?

const fruitIds = ['apple', 'orange', 'banana', 'tomato'];  // tomato is a fruit

fruitIds.forEach((id) => {
  const element = document.getElementById(`fruit-${id}`);
  element?.classList.add('active');
});
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Is that not equivalent, clear, and only iterates the list once instead of ~3 times?
What are the pros and cons of chaining array methods like the above? Perhaps easier to add another method, eg sort(), or some other filter()...but in this instance, not so much, imo.