Creating, throwing and handling exceptions in JS

Exceptional.js

function InvalidRequestError(statusCode, message) {
    const defaultMessage = 'invalid request, status code ' + statusCode;
    this.name = 'InvalidRequestError';
    this.message = message || defaultMessage;
    this.stack = (new Error()).stack;
}

InvalidRequestError.prototype = Object.create(Error.prototype);
InvalidRequestError.prototype.constructor = InvalidRequestError;

function someRequest(statusCode) {
    if(statusCode === '500' || statusCode === '400') {
        throw new InvalidRequestError(statusCode);
    }
    return statusCode;
}

function main() {
    try {
        someRequest('400');
    } catch(e) {
        // can check type of error here for individual handlers.
        console.error(e.name);
        console.error(e.message);
        console.error(e.stack);
    }
}

main();