* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
1.8 KiB
id, title, challengeType, forumTopicId, dashedName
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
587d7db6367417b2b2512b99 | Match Characters that Occur One or More Times | 1 | 301350 | match-characters-that-occur-one-or-more-times |
--description--
Sometimes, you need to match a character (or group of characters) that appears one or more times in a row. This means it occurs at least once, and may be repeated.
You can use the +
character to check if that is the case. Remember, the character or pattern has to be present consecutively. That is, the character has to repeat one after the other.
For example, /a+/g
would find one match in "abc"
and return ["a"]
. Because of the +
, it would also find a single match in "aabc"
and return ["aa"]
.
If it were instead checking the string "abab"
, it would find two matches and return ["a", "a"]
because the a
characters are not in a row - there is a b
between them. Finally, since there is no "a"
in the string "bcd"
, it wouldn't find a match.
--instructions--
You want to find matches when the letter s
occurs one or more times in "Mississippi"
. Write a regex that uses the +
sign.
--hints--
Your regex myRegex
should use the +
sign to match one or more s
characters.
assert(/\+/.test(myRegex.source));
Your regex myRegex
should match 2 items.
assert(result.length == 2);
The result
variable should be an array with two matches of "ss"
assert(result[0] == 'ss' && result[1] == 'ss');
--seed--
--seed-contents--
let difficultSpelling = "Mississippi";
let myRegex = /change/; // Change this line
let result = difficultSpelling.match(myRegex);
--solutions--
let difficultSpelling = "Mississippi";
let myRegex = /s+/g; // Change this line
let result = difficultSpelling.match(myRegex);