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---
id: 587d824d367417b2b2512c52
title: Test if a Value is a String
challengeType: 2
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forumTopicId: 301599
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---
## Description
< section id = 'description' >
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As a reminder, this project is being built upon the following starter project on < a href = 'https://glitch.com/edit/#!/remix/clone-from-repo?REPO_URL=https://github.com/freeCodeCamp/boilerplate-mochachai/' > Glitch< / a > , or cloned from < a href = 'https://github.com/freeCodeCamp/boilerplate-mochachai/' > GitHub< / a > .
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< code > isString< / code > or < code > isNotString< / code > asserts that the actual value is a string.
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< / section >
## Instructions
< section id = 'instructions' >
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Use < code > assert.isString()< / code > or < code > assert.isNotString()< / code > to make the tests pass.
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< / section >
## Tests
< section id = 'tests' >
```yml
tests:
- text: All tests should pass
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testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit& n=12').then(data => { assert.equal(data.state,'passed'); }, xhr => { throw new Error(xhr.responseText); })
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- text: Choose the right assertion - isString vs. isNotString
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testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit& n=12').then(data => { assert.equal(data.assertions[0].method, 'isNotString', 'A float number is not a string'); }, xhr => { throw new Error(xhr.responseText); })
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- text: Choose the right assertion - isString vs. isNotString
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testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit& n=12').then(data => { assert.equal(data.assertions[1].method, 'isString', 'environment vars are strings (or undefined)'); }, xhr => { throw new Error(xhr.responseText); })
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- text: Choose the right assertion - isString vs. isNotString
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testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit& n=12').then(data => { assert.equal(data.assertions[2].method, 'isString', 'A JSON is a string'); }, xhr => { throw new Error(xhr.responseText); })
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```
< / section >
## Challenge Seed
< section id = 'challengeSeed' >
< / section >
## Solution
< section id = 'solution' >
```js
// solution required
```
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< / section >