Custom error class in TypeScript

Question

I\'d like to create my own error class in TypeScript, extending core Error to provide better error handling and customized reporting. For example, I want to cre

Answer 1

Until 1.6 rolls around, I've just been making my own extendable classes.

class BaseError {
    constructor () {
        Error.apply(this, arguments);
    }
}

BaseError.prototype = new Error();

class HttpRequestError extends BaseError {
    constructor (public status: number, public message: string) {
        super();    
    }
}

var error = new HttpRequestError(500, 'Server Error');

console.log(
    error,
    // True
    error instanceof HttpRequestError,
    // True
    error instanceof Error
);