Binary Prefix Divisible By 5 LeetCode solution in JavaScript

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var prefixesDivBy5 = function (nums) {
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  let res = [];
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  let binary = 0;
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  for (let num of nums) {
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    binary = (binary % 5) * 2 + num;
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    let checkBinary = binary % 5 === 0;
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    res.push(checkBinary);
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  }
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  return res;
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};