typescript Extendovaníinignníhypypuv typescriptu

Posted 2021-05-21

// DO NOT WORK ANY MORE
class FooError extends Error {
    constructor(m: string) {
        super(m);
    }
    sayHello() {
        return "hello " + this.message;
    }
}

// HAS TO BE LIKE THIS FROM NOW ON
class FooError extends Error {
    // MAGIC
    constructor(m: string) {
        super(m);

        // Set the prototype explicitly.
        Object.setPrototypeOf(this, FooError.prototype);
    }

    sayHello() {
        return "hello " + this.message;
    }
}