--- id: 587d7b8b367417b2b2512b53 title: Use class Syntax to Define a Constructor Function challengeType: 1 --- ## Description
ES6 provides a new syntax to help create objects, using the keyword class. This is to be noted, that the class syntax is just a syntax, and not a full-fledged class based implementation of object oriented paradigm, unlike in languages like Java, or Python, or Ruby etc. In ES5, we usually define a constructor function, and use the new keyword to instantiate an object.
var SpaceShuttle = function(targetPlanet){
  this.targetPlanet = targetPlanet;
}
var zeus = new SpaceShuttle('Jupiter');
The class syntax simply replaces the constructor function creation:
class SpaceShuttle {
  constructor(targetPlanet){
    this.targetPlanet = targetPlanet;
  }
}
const zeus = new SpaceShuttle('Jupiter');
Notice that the class keyword declares a new function, and a constructor was added, which would be invoked when new is called - to create a new object.
## Instructions
Use class keyword and write a proper constructor to create the Vegetable class. The Vegetable lets you create a vegetable object, with a property name, to be passed to constructor.
## Tests
```yml tests: - text: Vegetable should be a class with a defined constructor method. testString: 'assert(typeof Vegetable === ''function'' && typeof Vegetable.constructor === ''function'', ''Vegetable should be a class with a defined constructor method.'');' - text: class keyword was used. testString: 'getUserInput => assert(getUserInput(''index'').match(/class/g),''class keyword was used.'');' - text: Vegetable can be instantiated. testString: 'assert(() => {const a = new Vegetable("apple"); return typeof a === ''object'';},''Vegetable can be instantiated.'');' - text: carrot.name should return carrot. testString: 'assert(carrot.name==''carrot'',''carrot.name should return carrot.'');' ```
## Challenge Seed
```js function makeClass() { "use strict"; /* Alter code below this line */ /* Alter code above this line */ return Vegetable; } const Vegetable = makeClass(); const carrot = new Vegetable('carrot'); console.log(carrot.name); // => should be 'carrot' ```
## Solution
```js // solution required ```