TypeTags `.FinalizationRegistry`

Overview

A FinalizationRegistry object lets you request a callback when an object is garbage-collected.

Usage

import { TypeTags } from 'typetags'

console.log(TypeTags.FinalizationRegistry)
// → [object FinalizationRegistry]

Predicate

`.isFinalizationRegistry(value)`

Checks if value is or has a default FinalizationRegistry type tag.

const { TypeTags } = require('typetags')

let end = new FinalizationRegistry()

TypeTags.isFinalizationRegistry(end)
// → true

TypeTags.isFinalizationRegistry(end.toString())
// → true

Metadata (TType)

Metadata	Value
`.type`	`FinalizationRegistry`
`.tag`	`[object FinalizationRegistry]`
`.builtin()`	`undefined`
`.getTag()`	`[object FinalizationRegistry]`
`.hasSpecialArgs()`	`true`
`.instance()`	`undefined`
`.instanceTypeOf()`	`object`
`.info()`	see more
`.isAvailable()`	`true`
`.isConstructor()`	`true`
`.isFactory()`	`false`
`.isFunction()`	`true`
`.isGlobal()`	`true`
`.isIterator()`	`false`
`.isNested()`	`false`
`.isObject()`	`false`
`.isPrimitive()`	`false`
`.isStringifiable()`	`true`
`.isSyntatic()`	`false`
`.isTypedArray()`	`false`
`.ownKeys()`	`[length, name, prototype]`
`.toString()`	`function toString() { [native code] }`
`.typeOf()`	`function`

Signature

declare type ITypeTags = {
  [key in Types | NestedTypes]: Tags
}

declare interface Predicate {
  predicate(value: any): boolean
}

TypeTags .FinalizationRegistry

Overview#

Usage#

Predicate#

.isFinalizationRegistry(value)#

Metadata (TType)#

Signature#

See MDN Web Docs#

TypeTags `.FinalizationRegistry`

Overview

Usage

Predicate

`.isFinalizationRegistry(value)`

Metadata (TType)

Signature

See MDN Web Docs