instanceof Practice

instanceof

function ValidException(number, message) {
    this.message = message;
    this.name = "Teste prático";
    this.number = number;
}

function LogicException(number, message) {
    this.message = message;
    this.name = "Teste prático";
    this.number = number;
}

function myFunction(dayOfWeek) {
    if (dayOfWeek > 7) {
        throw new ValidException(123, 'Day of week must be less than 7');
    }
}

function doWork(value) {
    try {
        myFunction(value);
    }
    catch(e) {
        if (e instanceof ValidException) {
            alert(e.message);
        }
    }
}

doWork(90);