effect-io-ai

Package: effect
Module: Predicate

Predicate.isString

A refinement that checks if a value is a string.

Example

import * as assert from "node:assert"
import { isString } from "effect/Predicate"

assert.strictEqual(isString("hello"), true)
assert.strictEqual(isString(""), true)

assert.strictEqual(isString(123), false)
assert.strictEqual(isString(null), false)

Signature

declare const isString: (input: unknown) => input is string

Source

Since v2.0.0