Lemonade Change LeetCode solution in JavaScript

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/*
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 * @param {number[]} bills
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 * @return {boolean}
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 */
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var lemonadeChange = function (bills) {
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  let cashLocker = {
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    5: 0,
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    10: 0,
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  };
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  for (let i = 0; i < bills.length; i++) {
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    if (bills[i] === 5) {
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      cashLocker["5"] += 1;
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    } else if (bills[i] === 10 && cashLocker["5"] > 0) {
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      cashLocker["5"] -= 1;
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      cashLocker["10"] += 1;
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    } else if (
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      bills[i] === 20 &&
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      cashLocker["5"] >= 1 &&
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      cashLocker["10"] >= 1
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    ) {
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      cashLocker["5"] -= 1;
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      cashLocker["10"] -= 1;
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    } else if (bills[i] === 20 && cashLocker["5"] >= 3) {
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      cashLocker["5"] -= 3;
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    } else {
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      return false;
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    }
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  }
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  return true;
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};