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Package detail

@silen/is-weak-map

sileny5MIT1.0.3TypeScript support: included

Check if the parameter is weakmap

type, typescript, isWeakMap, is-weak-map

readme

is-weak-map

Determine if a value is WeakMap

install

npm i @silen/is-weak-map

api

  • declare function isWeakMap(val: any): boolean;

usage

const { isWeakMap } = require('@silen/is-weak-map');
// or
import { isWeakMap } from '@silen/is-weak-map';

console.log(isWeakMap(new Buffer(4)));
console.log(isWeakMap(Buffer.alloc(4)));
console.log(isWeakMap(undefined));
console.log(isWeakMap(null));
console.log(isWeakMap(''));
console.log(isWeakMap(true));
console.log(isWeakMap(0));
console.log(isWeakMap(1));
console.log(isWeakMap(1.0));
console.log(isWeakMap('string'));
console.log(isWeakMap({}));
console.log(isWeakMap(function foo() {}));
console.log(isWeakMap(Symbol()));
console.log(isWeakMap(new Set));
console.log(isWeakMap(new Map));
console.log(isWeakMap(new WeakMap));
console.log(isWeakMap(new WeakSet));

// or
console.log(window.Type.isWeakMap(new WeakSet));

This is a demo for testing the usage of isWeakMap from @silen/is-weak-map module. You can try the others and do likewise.

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