gaspersic/freeCodeCamp
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

fix(challenges): Regex Asterisk Challenge (#34800)

Browse Source 
* fix(challenges): Fixes description and adds tests to close #17872.

* fix(challenges): Removed unnecessary string arguments from testString

* fix: improved challenge instr and tests
This commit is contained in:
Kristofer Koishigawa
2019-04-01 22:49:13 +09:00
committed by The Coding Aviator
parent a326c2cf9a
commit 095188215f
1 changed files with 20 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/match-characters-that-occur-zero-or-more-times.english.md
View File

@ -13,7 +13,7 @@ The character to do this is the <code>asterisk</code> or <code>star</code>: <cod
## Instructions
<section id='instructions'>
Create a regex <code>chewieRegex</code> that uses the <code>*</code> character to match all the upper and lowercase <code>"a"</code> characters in <code>chewieQuote</code>. Your regex does not need flags, and it should not match any of the other quotes.
For this challenge, <code>chewieQuote</code> has been initialized as "Aaaaaaaaaaaaaaaarrrgh!" behind the scenes. Create a regex <code>chewieRegex</code> that uses the <code>*</code> character to match an uppercase <code>"A"</code> character immediately followed by zero or more lowercase <code>"a"</code> characters in <code>chewieQuote</code>. Your regex does not need flags or character classes, and it should not match any of the other quotes.
</section>
## Tests
@ -22,15 +22,17 @@ Create a regex <code>chewieRegex</code> that uses the <code>*</code> character t
```yml
tests:
- text: Your regex <code>chewieRegex</code> should use the <code>*</code> character to match zero or more <code>a</code> characters.
testString: assert(/\*/.test(chewieRegex.source), 'Your regex <code>chewieRegex</code> should use the <code>*</code> character to match zero or more <code>a</code> characters.');
- text: Your regex <code>chewieRegex</code> should match 16 characters.
testString: assert(result[0].length === 16, 'Your regex <code>chewieRegex</code> should match 16 characters.');
- text: Your regex should match <code>"Aaaaaaaaaaaaaaaa"</code>.
testString: assert(result[0] === 'Aaaaaaaaaaaaaaaa', 'Your regex should match <code>"Aaaaaaaaaaaaaaaa"</code>.');
- text: Your regex should not match any characters in <code>"He made a fair move. Screaming about it can&#39t help you."</code>
testString: assert(!"He made a fair move. Screaming about it can\'t help you.".match(chewieRegex), 'Your regex should not match any characters in <code>"He made a fair move. Screaming about it can&#39t help you."</code>');
- text: Your regex should not match any characters in <code>"Let him have it. It&#39s not wise to upset a Wookiee."</code>
testString: assert(!"Let him have it. It\'s not wise to upset a Wookiee.".match(chewieRegex), 'Your regex should not match any characters in <code>"Let him have it. It&#39s not wise to upset a Wookiee."</code>');
testString: assert(/\*/.test(chewieRegex.source));
- text: Your regex should match <code>"A"</code> in <code>chewieQuote</code>.
testString: assert(result[0][0] === 'A');
- text: Your regex should match <code>"Aaaaaaaaaaaaaaaa"</code> in <code>chewieQuote</code>.
testString: assert(result[0] === 'Aaaaaaaaaaaaaaaa');
- text: Your regex <code>chewieRegex</code> should match 16 characters in <code>chewieQuote</code>.
testString: assert(result[0].length === 16);
- text: Your regex should not match any characters in "He made a fair move. Screaming about it can't help you."
testString: assert(!"He made a fair move. Screaming about it can't help you.".match(chewieRegex));
- text: Your regex should not match any characters in "Let him have it. It's not wise to upset a Wookiee."
testString: assert(!"Let him have it. It's not wise to upset a Wookiee.".match(chewieRegex));
```
@ -42,14 +44,20 @@ tests:
<div id='js-seed'>
```js
let chewieQuote = "Aaaaaaaaaaaaaaaarrrgh!";
let chewieRegex = /change/; // Change this line
let chewieRegex = /change/; // Only change this line
let result = chewieQuote.match(chewieRegex);
```
</div>
## Before Test
<div id='js-setup'>
```js
const chewieQuote = "Aaaaaaaaaaaaaaaarrrgh!";
```
</div>
</section>
@ -57,7 +65,6 @@ let result = chewieQuote.match(chewieRegex);
<section id='solution'>
```js
let chewieQuote = "Aaaaaaaaaaaaaaaarrrgh!";
let chewieRegex = /Aa*/;
let result = chewieQuote.match(chewieRegex);
```