Discussion on: The new keyword

[Thomas Broyer]

It's because you return a string. If you returned an object, it would be used instead.

See also developer.mozilla.org/en-US/docs/W...

[Shane Taylor (he/him)]

Thomas, you are sooooo right.

function createCar(color, speed) {
  this.color = color;
  this.speed = speed;
  return { motto: 'Cars are cool' };
}

createCar.prototype.go = function () {
  console.log('I prefer to drive ' + this.speed + '.');
}

const myCar = new createCar('red', 'fast');
console.log('myCar is', myCar); // will log the object with the 'motto' key :( :(

Thank you for highlighting this oddity. I'll be updating the article and including this in an upcoming post about things to be cautious of with the new keyword.