freeCodeCamp/curriculum/challenges/arabic/08-coding-interview-prep/rosetta-code/department-numbers.arabic.md

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---
title: Department Numbers
id: 59f40b17e79dbf1ab720ed7a
challengeType: 5
videoUrl: ''
localeTitle: ''
---
## Description
undefined
## Instructions
undefined
## Tests
<section id='tests'>
```yml
tests:
- text: ''
testString: 'assert(typeof combinations === "function", "<code>combinations</code> should be a function.");'
- text: ''
testString: 'assert(Array.isArray(combinations([1, 2, 3], 6)), "<code>combinations([1, 2, 3], 6)</code> should return an Array.");'
- text: ''
testString: 'assert(combinations(nums, total).length === len, "<code>combinations([1, 2, 3, 4, 5, 6, 7], 12)</code> should return an array of length 14.");'
- text: ''
testString: 'assert.deepEqual(combinations(nums, total), result, "<code>combinations([1, 2, 3, 4, 5, 6, 7], 12)</code> should return all valid combinations.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
function combinations (possibleNumbers, total) {
// Good luck!
return true;
}
```
</div>
### After Test
<div id='js-teardown'>
```js
console.info('after the test');
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>