ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
95 lines
1.8 KiB
Markdown
95 lines
1.8 KiB
Markdown
---
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id: 587d7b8a367417b2b2512b4d
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title: Use Destructuring Assignment to Pass an Object as a Function's Parameters
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challengeType: 1
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forumTopicId: 301217
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dashedName: use-destructuring-assignment-to-pass-an-object-as-a-functions-parameters
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---
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# --description--
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In some cases, you can destructure the object in a function argument itself.
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Consider the code below:
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```js
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const profileUpdate = (profileData) => {
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const { name, age, nationality, location } = profileData;
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// do something with these variables
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}
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```
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This effectively destructures the object sent into the function. This can also be done in-place:
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```js
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const profileUpdate = ({ name, age, nationality, location }) => {
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/* do something with these fields */
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}
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```
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When `profileData` is passed to the above function, the values are destructured from the function parameter for use within the function.
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# --instructions--
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Use destructuring assignment within the argument to the function `half` to send only `max` and `min` inside the function.
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# --hints--
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`stats` should be an `object`.
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```js
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assert(typeof stats === 'object');
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```
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`half(stats)` should be `28.015`
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```js
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assert(half(stats) === 28.015);
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```
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Destructuring should be used.
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```js
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assert(__helpers.removeWhiteSpace(code).match(/half=\({\w+,\w+}\)/));
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```
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Destructured parameter should be used.
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```js
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assert(!code.match(/stats\.max|stats\.min/));
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```
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# --seed--
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## --seed-contents--
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```js
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const stats = {
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max: 56.78,
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standard_deviation: 4.34,
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median: 34.54,
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mode: 23.87,
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min: -0.75,
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average: 35.85
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};
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// Only change code below this line
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const half = (stats) => (stats.max + stats.min) / 2.0;
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// Only change code above this line
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```
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# --solutions--
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```js
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const stats = {
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max: 56.78,
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standard_deviation: 4.34,
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median: 34.54,
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mode: 23.87,
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min: -0.75,
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average: 35.85
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};
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const half = ( {max, min} ) => (max + min) / 2.0;
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```
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