README.md

@10xly/is-instance-of

check if somethings an instance of something else. p]

Instawation

npm install @10xly/is-instance-of

Usage

const isInstanceOf = require("@10xly/is-instance-of")

class Animal {}
class Dog extends Animal {}
const pet = new Dog()

// Check by Constructor
isInstanceOf(pet, Dog) // true
isInstanceOf(pet, Animal) // true

// Check by Name (String)
isInstanceOf(pet, "Dog") // true

// Multiple options
isInstanceOf(pet, ["Cat", "Dog"]) // true

Why you might use this seriously

This is a version of is-instance-of by lamansky that resolves a vulnerability in lodash.set. However, it is a little overengineered, but this actually has a practical purpose. see the readme of is-instance-of for more info