Determine whether the passed value is a zero based index.
JavaScript
0
0
MIT License
**is-index-x** is a tiny utility library that checks whether a given value (number or numeric‑string) is a valid zero‑based array index, optionally bounded by a supplied length (defaulting to `Number.MAX_SAFE_INTEGER`). It’s aimed at JavaScript developers who need a reliable, side‑effect‑free way to validate indexes for arrays, strings, or other index‑based structures.
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