Function instance

The instance schema validates that the input is an instance of a class.

Example

import { instance } from "typerun/schema";
import { is } from "typerun";

class MyClass {}
const isInstance = is(instance(MyClass))(new MyClass());
console.log(isInstance); // true

const isNotInstance = is(instance(MyClass))({});
console.log(isNotInstance); // false
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Caveats

TypeScript will raise a compilation error if you try to use the instance schema with a class with a private constructor.