isWeakMap

Checks if a value is a WeakMap object.

function isWeakMap(value: unknown): value is WeakMap<WeakKey, any>

Parameters

value

• Type: unknown

The value to check.

Returns

Returns true if value is a weak map, else false.

Example

import { isWeakMap } from '@chronus-dev/utils'

const fruits: unknown = new WeakMap()
const apple = {}

if (isWeakMap(fruits)) {
    fruits.set(apple, 1) // => { {…} => 1 }
}