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JS
JavaScript error

RangeError

The JavaScript exception "Invalid array length" occurs when specifying an array length that is either negative, a floating number or exceeds the maximum supported by the platform (i.e., when creating an Array or ArrayBuffer, or when setting the length property).

Reference entryJavaScriptFetched
This is a reference entry from MDN Web Docs. A full explanation with fixes has not been written yet.

The error messages

RangeError: invalid array length (V8-based & Firefox)
As listed by MDN Web Docs
RangeError: Array size is not a small enough positive integer. (Safari)
As listed by MDN Web Docs
RangeError: Invalid array buffer length (V8-based)
As listed by MDN Web Docs
RangeError: length too large (Safari)
As listed by MDN Web Docs

Details

Category
RangeError
Severity
error
Runtime
both

Related errors

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Source: MDN Web Docs. Data fetched 2026-09-25T01:48:37.274Z.