freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/es6/write-concise-object-literal-declarations-using-object-property-shorthand.english.md

id, title, challengeType

id	title	challengeType
587d7b8a367417b2b2512b4f	Write Concise Object Literal Declarations Using Object Property Shorthand	1

Description

ES6 adds some nice support for easily defining object literals. Consider the following code:

const getMousePosition = (x, y) => ({
  x: x,
  y: y
});

getMousePosition is a simple function that returns an object containing two properties. ES6 provides the syntactic sugar to eliminate the redundancy of having to write x: x. You can simply write x once, and it will be converted tox: x (or something equivalent) under the hood. Here is the same function from above rewritten to use this new syntax:

const getMousePosition = (x, y) => ({ x, y });

Instructions

Use object property shorthand with object literals to create and return an object with name, age and gender properties.

Tests

tests:
  - text: '<code>createPerson("Zodiac Hasbro", 56, "male")</code> should return <code>{name: "Zodiac Hasbro", age: 56, gender: "male"}</code>.'
    testString: assert.deepEqual({name:"Zodiac Hasbro",age:56,gender:"male"}, createPerson("Zodiac Hasbro", 56, "male"));
  - text: Your code should not use <code>key:value</code>.
    testString: getUserInput => assert(!getUserInput('index').match(/:/g));

Challenge Seed

const createPerson = (name, age, gender) => {
  "use strict";
  // change code below this line
  return {
    name: name,
    age: age,
    gender: gender
  };
  // change code above this line
};
console.log(createPerson("Zodiac Hasbro", 56, "male")); // returns a proper object

Solution

const createPerson = (name, age, gender) => {
  "use strict";
  return {
    name,
    age,
    gender
  };
};