79d9012432
* fix(curriculum): tests quotes * fix(curriculum): fill seed-teardown * fix(curriculum): fix tests and remove unneeded seed-teardown
67 lines
2.0 KiB
Markdown
67 lines
2.0 KiB
Markdown
---
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id: 587d7db8367417b2b2512ba2
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title: Restrict Possible Usernames
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challengeType: 1
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---
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## Description
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<section id='description'>
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Usernames are used everywhere on the internet. They are what give users a unique identity on their favorite sites.
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You need to check all the usernames in a database. Here are some simple rules that users have to follow when creating their username.
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1) The only numbers in the username have to be at the end. There can be zero or more of them at the end.
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2) Username letters can be lowercase and uppercase.
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3) Usernames have to be at least two characters long. A two-letter username can only use alphabet letter characters.
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</section>
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## Instructions
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<section id='instructions'>
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Change the regex <code>userCheck</code> to fit the constraints listed above.
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: Your regex should match <code>JACK</code>
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testString: assert(userCheck.test("JACK"), 'Your regex should match <code>JACK</code>');
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- text: Your regex should not match <code>J</code>
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testString: assert(!userCheck.test("J"), 'Your regex should not match <code>J</code>');
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- text: Your regex should match <code>Oceans11</code>
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testString: assert(userCheck.test("Oceans11"), 'Your regex should match <code>Oceans11</code>');
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- text: Your regex should match <code>RegexGuru</code>
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testString: assert(userCheck.test("RegexGuru"), 'Your regex should match <code>RegexGuru</code>');
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- text: Your regex should not match <code>007</code>
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testString: assert(!userCheck.test("007"), 'Your regex should not match <code>007</code>');
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- text: Your regex should not match <code>9</code>
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testString: assert(!userCheck.test("9"), 'Your regex should not match <code>9</code>');
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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let username = "JackOfAllTrades";
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let userCheck = /change/; // Change this line
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let result = userCheck.test(username);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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