---
id: 587d824c367417b2b2512c4f
title: Test if a Value Falls within a Specific Range
challengeType: 2
---
## Description
As a reminder, this project is being built upon the following starter project on Glitch, or cloned from GitHub.
.approximately(actual, expected, delta, [message])
Asserts that the actual is equal expected, to within a +/- delta range.
## Instructions
Use assert.approximately() to make the tests pass.
Choose the minimum range (3rd parameter) to make the test always pass. It should be less than 1.
## Tests
```yml
tests:
- text: All tests should pass
testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=9').then(data => {assert.equal(data.state,'passed'); }, xhr => { throw new Error(xhr.responseText); })
- text: Use approximately(actual, expected, range) - Chose the correct range
testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=9').then(data => { assert.equal(data.assertions[0].method, 'approximately'); assert.equal(data.assertions[0].args[2], 0.5, 'weirdNumbers(0.5) is in the range (0.5, 1.5]. It\'s within 1 +/- 0.5'); }, xhr => { throw new Error(xhr.responseText); })
- text: Use approximately(actual, expected, range) - Chose the correct range
testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=9').then(data => { assert.equal(data.assertions[1].method, 'approximately'); assert.equal(data.assertions[1].args[2], 0.8, 'weirdNumbers(0.2) is in the range (0.2, 1.2]. It\'s within 1 +/- 0.8'); }, xhr => { throw new Error(xhr.responseText); })
```
## Challenge Seed
## Solution
```js
// solution required
```