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what if use Array.slice() directly? #13

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jxxl998 opened this issue Dec 7, 2022 · 0 comments

jxxl998 commented Dec 7, 2022 •

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//  Get the last or last n elements in an array.

export default function (array, num = 1) {
  if (!Array.isArray)
    throw new Error('array-first expects an array as the first element');

  if (typeof num !== 'number') throw new Error('num expects a number');

  if (array.length === 0) return null;

  return num === 1 ? array.pop() : array.slice(-num);
}

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