Divide Array Into Equal Pairs LeetCode solution in JavaScript

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/**
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 * @param {number[]} nums
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 * @return {boolean}
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 */
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var divideArray = function (nums) {
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  return !nums
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    .reduce((acc, cur) => (acc[cur]++, acc), new Uint16Array(501))
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    .some((n) => n % 2);
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};