effect-io-ai

Package: effect
Module: Predicate

Predicate.isTupleOfAtLeast

Checks whether a readonly array has at least n elements.

When to use

Use when you need a Predicate guard for tuple-like minimum length that narrows ReadonlyArray<T> to TupleOfAtLeast<N, T>.

Details

This only checks length, not element types, and returns a refinement on the array type.

Example (Checking minimum length)

import { Predicate } from "effect"

const hasAtLeast2 = Predicate.isTupleOfAtLeast(2)

console.log(hasAtLeast2([1, 2, 3]))

See

• isTupleOf
• Tuple

Signature

declare const isTupleOfAtLeast: { <N extends number>(n: N): <T>(self: ReadonlyArray<T>) => self is TupleOfAtLeast<N, T>; <T, N extends number>(self: ReadonlyArray<T>, n: N): self is TupleOfAtLeast<N, T>; }

Source

Since v3.3.0