Distance Between Bus Stops LeetCode solution in JavaScript

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/**
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 * @param {number[]} distance
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 * @param {number} start
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 * @param {number} destination
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 * @return {number}
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 */
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let sumArray = (arr) => {
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  return arr.reduce((prev, curr) => prev + curr, 0);
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};
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var distanceBetweenBusStops = function (distance, start, destination) {
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  let dist = sumArray(
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    distance.slice(
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      start < destination ? start : destination,
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      start < destination ? destination : start
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    )
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  );
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  return Math.min(dist, sumArray(distance) - dist);
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};