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

2.0 KiB

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
587d7db9367417b2b2512ba4 匹配非空白字符 1 18210 match-non-whitespace-characters

--description--

已经学会了如何使用带有小写s的缩写\s来搜寻空白字符。还可以搜寻除了空格之外的所有内容。

使用\S搜寻非空白字符,其中S是大写。此匹配模式将不匹配空格、回车符、制表符、换页符和换行符。可以认为这类似于元字符[^\r\t\f\n\v]

let whiteSpace = "Whitespace. Whitespace everywhere!"
let nonSpaceRegex = /\S/g;
whiteSpace.match(nonSpaceRegex).length; // Returns 32

--instructions--

修改正则表达式countNonWhiteSpace以查找字符串中的多个非空字符。

--hints--

你的正则表达式应该使用全局状态修正符。

assert(countNonWhiteSpace.global);

正则表达式应该使用元字符 \S/code> 来匹配所有的非空格字符。

assert(/\\S/.test(countNonWhiteSpace.source));

你的正则表达式应该在'Men are from Mars and women are from Venus.'中匹配到 35 个非空白字符。

assert(
  'Men are from Mars and women are from Venus.'.match(countNonWhiteSpace)
    .length == 35
);

你的正则表达式应该在"Space: the final frontier."中匹配到 23 个非空白字符。

assert('Space: the final frontier.'.match(countNonWhiteSpace).length == 23);

你的正则表达式应该在'MindYourPersonalSpace'中匹配到 21 个非空白字符。

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);