Code reviewMediumcr-g343

Subject SerializationLevel Mid–Senior~18 minCommon in Code quality & review interviewsIndustries Software development

Question

Review this JavaScript that builds a price-count histogram and serializes it, expecting to read prices back later.

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Code to reviewjavascript

1function histogram(prices) {2  const h = {};3  for (const p of prices) {       // p like 0.1, 0.2, 0.34    const key = p * 3;            // bucket width grouping5    h[key] = (h[key] || 0) + 1;6  }7  return JSON.stringify(h);8}

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