A custom Node.js ES6 error.

custom-es6-node-error

/**
 * A custom MyError class
 * @class
 */
class MyError extends Error {
    /**
     * Constructs the MyError class
     * @param {String} message an error message
     * @constructor
     */
    constructor(message) {
        super(message);
        // properly capture stack trace in Node.js
        Error.captureStackTrace(this, this.constructor);
        this.name = this.constructor.name;
    }
}

// test it
throw new MyError('test');
//MyError: test

https://gist.github.com/mrister/8ba7f65fbe39b6e14f7c57ddf731ecd8#file-custom-es6-node-error-L16 is redundant with super(message);

Indeed, thanks @mathieug