From 365ce2ddc713260a00a3cdc2599e012e0deb5bae Mon Sep 17 00:00:00 2001
From: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>
Date: Tue, 30 Apr 2019 18:40:38 -0700
Subject: [PATCH] fix(curriculum): Added test and corrected solution for
Restrict Possible Usernames challenge (#35847)
* fix: added test and corrected solution
* fix: removed redundant regex
Co-Authored-By: RandellDawson <5313213+RandellDawson@users.noreply.github.com>
---
.../restrict-possible-usernames.english.md | 31 +++++++++++--------
1 file changed, 18 insertions(+), 13 deletions(-)
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/restrict-possible-usernames.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/restrict-possible-usernames.english.md
index 316ee0542b..5549409bb0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/restrict-possible-usernames.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/regular-expressions/restrict-possible-usernames.english.md
@@ -8,9 +8,10 @@ challengeType: 1
Usernames are used everywhere on the internet. They are what give users a unique identity on their favorite sites.
You need to check all the usernames in a database. Here are some simple rules that users have to follow when creating their username.
-1) The only numbers in the username have to be at the end. There can be zero or more of them at the end.
-2) Username letters can be lowercase and uppercase.
-3) Usernames have to be at least two characters long. A two-letter username can only use alphabet letter characters.
+1) Usernames can only use alpha-numeric characters.
+2) The only numbers in the username have to be at the end. There can be zero or more of them at the end.
+3) Username letters can be lowercase and uppercase.
+4) Usernames have to be at least two characters long. A two-character username can only use alphabet letters as characters.
## Instructions
@@ -24,23 +25,25 @@ Change the regex userCheck
to fit the constraints listed above.
```yml
tests:
- text: Your regex should match JACK
- testString: assert(userCheck.test("JACK"), 'Your regex should match JACK
');
+ testString: assert(userCheck.test("JACK"));
- text: Your regex should not match J
- testString: assert(!userCheck.test("J"), 'Your regex should not match J
');
+ testString: assert(!userCheck.test("J"));
- text: Your regex should match Jo
- testString: assert(userCheck.test("Jo"), 'Your regex should match Jo
');
+ testString: assert(userCheck.test("Jo"));
- text: Your regex should match Oceans11
- testString: assert(userCheck.test("Oceans11"), 'Your regex should match Oceans11
');
+ testString: assert(userCheck.test("Oceans11"));
- text: Your regex should match RegexGuru
- testString: assert(userCheck.test("RegexGuru"), 'Your regex should match RegexGuru
');
+ testString: assert(userCheck.test("RegexGuru"));
- text: Your regex should not match 007
- testString: assert(!userCheck.test("007"), 'Your regex should not match 007
');
+ testString: assert(!userCheck.test("007"));
- text: Your regex should not match 9
- testString: assert(!userCheck.test("9"), 'Your regex should not match 9
');
+ testString: assert(!userCheck.test("9"));
- text: Your regex should not match A1
- testString: assert(!userCheck.test("A1"), 'Your regex should not match A1
');
+ testString: assert(!userCheck.test("A1"));
- text: Your regex should not match BadUs3rnam3
- testString: assert(!userCheck.test("BadUs3rnam3"), 'Your regex should not match BadUs3rnam3
');
+ testString: assert(!userCheck.test("BadUs3rnam3"));
+ - text: Your regex should match Z97
+ testString: assert(userCheck.test("Z97"));
```
@@ -67,7 +70,9 @@ let result = userCheck.test(username);
```js
-const userCheck = /^[A-Za-z]{2,}\d*$/;
+let username = "JackOfAllTrades";
+const userCheck = /^[a-z]([0-9]{2,}|[a-z]+\d*)$/i;
+let result = userCheck.test(username);
```