GuardsArray Guards

Check Array of Type

Validates that all elements in an array match a specific type guard.

isArrayOfType

Validates that all elements in an array match a specific type guard. Useful for checking homogeneous collections from untyped sources.

function isArrayOfType<T>(
  value: unknown,
  typeCheck: (item: unknown) => item is T
): value is T[]

playground.ts

Last updated: Wed, May 27, 2026 05:21:04AM (UTC)

Check Valid Array

Checks if a value is both an array and contains at least one element.

Check Empty/Invalid Array

Checks if a value is an empty array or an array with only empty values.