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Fundamentals·medium 18 min 75 XP

Grade Calculator

Convert a numeric score (0-100) into a letter grade: A (90+), B (80+), C (70+), D (60+), else F.

Examples

  • gradeCalculator(95) → "A"
  • gradeCalculator(72) → "C"
  • gradeCalculator(40) → "F"

Constraints

  • Keep the required function name so the tests can find it
  • Return a value instead of only logging it
  • Do not mutate inputs unless the challenge asks you to
Grade Calculator · editor

Code runs in an isolated Web Worker with a 3-second timeout — no DOM access, and it can never hang the page.