Oliver Eyton-Williams ee1e8abd87
feat(curriculum): restore seed + solution to Chinese (#40683)
* 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>
2021-01-12 19:31:00 -07:00

1.8 KiB

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
587d7db8367417b2b2512ba3 匹配空白字符 1 301359 match-whitespace

--description--

迄今为止的挑战包括匹配的字母和数字。还可以匹配字母之间的空格。

可以使用\s搜寻空格,其中s是小写。此匹配模式不仅匹配空格,还匹配回车符、制表符、换页符和换行符,可以将其视为与[\r\t\f\n\v]类似。

let whiteSpace = "Whitespace. Whitespace everywhere!"
let spaceRegex = /\s/g;
whiteSpace.match(spaceRegex);
// Returns [" ", " "]

--instructions--

修改正则表达式countWhiteSpace查找字符串中的多个空白字符。

--hints--

你的正则表达式应该使用全局状态修正符。

assert(countWhiteSpace.global);

正则表达式应该使用元字符 \s 匹配所有的空白。

assert(/\\s/.test(countWhiteSpace.source));

你的正则表达式应该在'Men are from Mars and women are from Venus.'中匹配到 8 个空白字符。

assert(
  'Men are from Mars and women are from Venus.'.match(countWhiteSpace).length ==
    8
);

你的正则表达式应该在"Space: the final frontier."中匹配到 3 个空白字符。

assert('Space: the final frontier.'.match(countWhiteSpace).length == 3);

你的正则表达式在'MindYourPersonalSpace'中应该匹配不到空白字符。

assert('MindYourPersonalSpace'.match(countWhiteSpace) == null);

--seed--

--seed-contents--

let sample = "Whitespace is important in separating words";
let countWhiteSpace = /change/; // Change this line
let result = sample.match(countWhiteSpace);

--solutions--

let sample = "Whitespace is important in separating words";
let countWhiteSpace = /\s/g;
let result = sample.match(countWhiteSpace);