Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
Zero-based indexing is a numbering system where the first element in an array or list is assigned index 0 instead of 1. This means that elements are accessed by their position relative to zero.