W3cubDocs

/VueUse

isDefined

Category	Utilities
Export Size	86 B
Last Changed	2 weeks ago

Usage

import { isDefined } from '@vueuse/core'

const example = ref(Math.random() ? 'example' : undefined) // Ref<string | undefined>

if (isDefined(example))
  example // Ref<string>

Type Declarations

export declare function isDefined<T>(
  v: Ref<T>
): v is Ref<Exclude<T, null | undefined>>
export declare function isDefined<T>(
  v: ComputedRef<T>
): v is ComputedRef<Exclude<T, null | undefined>>
export declare function isDefined<T>(v: T): v is Exclude<T, null | undefined>

Source

Source • Docs

No recent changes