Note

#TIL you can change the implementation of #JavaScript's instanceof operator using Symbol.hasInstance

export class TheAnswer {
  static [Symbol.hasInstance](value) {
    return value == 42;
  }
}

then

// true
42 instanceof TheAnswer

There's more cool stuff about Symbol here:

https://www.javascripttutorial.net/es6/symbol/

metadata

Open on GiHub

{
  "mastodon_status": [
    "https://hyem.tech/@rob/111731435185818323",
    "https://hyem.tech/@rob/111731520375539102"
  ],
  "external": [
    "https://www.javascripttutorial.net/es6/symbol/"
  ]
}