← Practice
Arrays·easy 10 min 50 XP

Sum Array

Return the sum of all numbers in an array.

Examples

  • sumArray([1, 2, 3]) → 6

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
Sum Array · editor

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