JavaScript · Arrays

Array.isArray()

The reliable way to test for an array. typeof returns "object".

Syntax
Array.isArray(value)

Example

Try it

More in this group

array.at() array.concat() array.fill() array.findIndex() array.findLast() array.flat() array.flatMap() array.forEach()

Learn this in the course

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.

Open the course