freeCodeCamp/curriculum/challenges/arabic/02-javascript-algorithms-an.../es6/set-default-parameters-for-...

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---
id: 587d7b88367417b2b2512b46
title: Set Default Parameters for Your Functions
challengeType: 1
videoUrl: ''
localeTitle: ''
---
## Description
undefined
## Instructions
undefined
## Tests
<section id='tests'>
```yml
tests:
- text: ''
testString: 'assert(increment(5, 2) === 7, "The result of <code>increment(5, 2)</code> should be <code>7</code>.");'
- text: ''
testString: 'assert(increment(5) === 6, "The result of <code>increment(5)</code> should be <code>6</code>.");'
- text: ''
testString: 'getUserInput => assert(getUserInput("index").match(/value\s*=\s*1/g), "default parameter <code>1</code> was used for <code>value</code>.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
const increment = (function() {
"use strict";
return function increment(number, value) {
return number + value;
};
})();
console.log(increment(5, 2)); // returns 7
console.log(increment(5)); // returns 6
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>