Code reviewMediumcr-g123

Subject Date arithmeticLevel Mid–Senior~25 minCommon in Code quality & review interviewsIndustries Software development

Question

Review this JavaScript age calculator.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix — specific and kind.

Learn the concepts

Talk through your review

Code to reviewjavascript

1function ageInYears(birthIso) {2  const b = new Date(birthIso);3  const now = new Date();4  const ms = now - b;5  return Math.floor(ms / (365 * 24 * 60 * 60 * 1000));6}

Run or narrate your approach, then ask the coach.