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id	title	challengeType	forumTopicId	dashedName
587d7b8a367417b2b2512b4d	Use Destructuring Assignment to Pass an Object as a Function's Parameters	1	301217	use-destructuring-assignment-to-pass-an-object-as-a-functions-parameters

--description--

In some cases, you can destructure the object in a function argument itself.

Consider the code below:

const profileUpdate = (profileData) => {
  const { name, age, nationality, location } = profileData;

}

This effectively destructures the object sent into the function. This can also be done in-place:

const profileUpdate = ({ name, age, nationality, location }) => {

}

When profileData is passed to the above function, the values are destructured from the function parameter for use within the function.

--instructions--

Use destructuring assignment within the argument to the function half to send only max and min inside the function.

--hints--

stats should be an object.

assert(typeof stats === 'object');

half(stats) should be 28.015

assert(half(stats) === 28.015);

Destructuring should be used.

assert(__helpers.removeWhiteSpace(code).match(/half=\({\w+,\w+}\)/));

Destructured parameter should be used.

assert(!code.match(/stats\.max|stats\.min/));

--seed--

--seed-contents--

const stats = {
  max: 56.78,
  standard_deviation: 4.34,
  median: 34.54,
  mode: 23.87,
  min: -0.75,
  average: 35.85
};

// Only change code below this line
const half = (stats) => (stats.max + stats.min) / 2.0; 
// Only change code above this line

--solutions--

const stats = {
  max: 56.78,
  standard_deviation: 4.34,
  median: 34.54,
  mode: 23.87,
  min: -0.75,
  average: 35.85
};

const half = ( {max, min} ) => (max + min) / 2.0;

1.8 KiB Raw Blame History