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---
id: 587d824d367417b2b2512c54
title: Use Regular Expressions to Test a String
challengeType: 2
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forumTopicId: 301608
2021-01-13 02:31:00 +00:00
dashedName: use-regular-expressions-to-test-a-string
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---
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# --description--
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As a reminder, this project is being built upon the following starter project on [Repl.it ](https://repl.it/github/freeCodeCamp/boilerplate-mochachai ), or cloned from [GitHub ](https://github.com/freeCodeCamp/boilerplate-mochachai/ ).
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`match()` asserts that the actual value matches the second argument regular expression.
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# --instructions--
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Within `tests/1_unit-tests.js` under the test labelled `#15` in the `Strings` suite, change each `assert` to either `assert.match` or `assert.notMatch` to make the test pass (should evaluate to `true` ). Do not alter the arguments passed to the asserts.
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# --hints--
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All tests should pass.
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```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit& n=14').then(
(data) => {
assert.equal(data.state, 'passed');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
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```
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You should choose the correct method for the first assertion - `match` vs. `notMatch` .
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```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit& n=14').then(
(data) => {
assert.equal(
data.assertions[0].method,
'match',
"'# name:John Doe, age:35' matches the regex"
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
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You should choose the correct method for the second assertion - `match` vs. `notMatch` .
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```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit& n=14').then(
(data) => {
assert.equal(
data.assertions[1].method,
'notMatch',
"'# name:Paul Smith III, age:twenty-four' does not match the regex (the age must be numeric)"
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
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# --solutions--
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```js
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/**
Backend challenges don't need solutions,
because they would need to be tested against a full working project.
Please check our contributing guidelines to learn more.
*/
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```