Number of Boomerangs LeetCode solution in JavaScript

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var numberOfBoomerangs = function (points) {
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  const POINTS_LEN = points.length;
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  let result = 0;
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  for (let i = 0; i < POINTS_LEN; i++) {
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    const hash = new Map();
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    for (let j = 0; j < POINTS_LEN; j++) {
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      if (i === j) continue;
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      const [x1, y1] = points[i];
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      const [x2, y2] = points[j];
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      const dis = Math.pow(x1 - x2, 2) + Math.pow(y1 - y2, 2);
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      const value = hash.get(dis) ?? 0;
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      if (value > 0) result += value * 2;
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      hash.set(dis, value + 1);
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    }
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  }
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  return result;
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};