* 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>
1.9 KiB
id, title, challengeType, forumTopicId, dashedName
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
587d7db9367417b2b2512ba4 | Match Non-Whitespace Characters | 1 | 18210 | match-non-whitespace-characters |
--description--
You learned about searching for whitespace using \s
, with a lowercase s
. You can also search for everything except whitespace.
Search for non-whitespace using \S
, which is an uppercase s
. This pattern will not match whitespace, carriage return, tab, form feed, and new line characters. You can think of it being similar to the character class [^ \r\t\f\n\v]
.
let whiteSpace = "Whitespace. Whitespace everywhere!"
let nonSpaceRegex = /\S/g;
whiteSpace.match(nonSpaceRegex).length; // Returns 32
--instructions--
Change the regex countNonWhiteSpace
to look for multiple non-whitespace characters in a string.
--hints--
Your regex should use the global flag.
assert(countNonWhiteSpace.global);
Your regex should use the shorthand character \S
to match all non-whitespace characters.
assert(/\\S/.test(countNonWhiteSpace.source));
Your regex should find 35 non-spaces in "Men are from Mars and women are from Venus."
assert(
'Men are from Mars and women are from Venus.'.match(countNonWhiteSpace)
.length == 35
);
Your regex should find 23 non-spaces in "Space: the final frontier."
assert('Space: the final frontier.'.match(countNonWhiteSpace).length == 23);
Your regex should find 21 non-spaces in "MindYourPersonalSpace"
assert('MindYourPersonalSpace'.match(countNonWhiteSpace).length == 21);
--seed--
--seed-contents--
let sample = "Whitespace is important in separating words";
let countNonWhiteSpace = /change/; // Change this line
let result = sample.match(countNonWhiteSpace);
--solutions--
let sample = "Whitespace is important in separating words";
let countNonWhiteSpace = /\S/g; // Change this line
let result = sample.match(countNonWhiteSpace);