isArray

isArray(value) → boolean · Type

Returns true if the value is an array.

• value (required): the value to test

isArray([1, 2, 3])                       // true
isArray("hello")                         // false
isArray($input.items)                    // true if items is an array

// Use case: handle XML single-vs-array ambiguity
let items = if (isArray($input.Item)) $input.Item else [$input.Item]
// Ensures items is always an array, even when XML has a single <Item>