ee1e8abd87
* 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>
65 lines
1.5 KiB
Markdown
65 lines
1.5 KiB
Markdown
---
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id: 587d7db5367417b2b2512b97
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title: 匹配字母表中的数字和字母
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challengeType: 1
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forumTopicId: 301356
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dashedName: match-numbers-and-letters-of-the-alphabet
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---
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# --description--
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使用连字符（`-`）匹配字符范围并不仅限于字母。它还可以匹配一系列数字。
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例如，`/[0-5]/`匹配`0`和`5`之间的任意数字，包含`0`和`5`。
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此外，还可以在单个字符集中组合一系列字母和数字。
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```js
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let jennyStr = "Jenny8675309";
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let myRegex = /[a-z0-9]/ig;
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// matches all letters and numbers in jennyStr
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jennyStr.match(myRegex);
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```
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# --instructions--
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创建一个正则表达式，使其可以匹配`h`和`s`之间的一系列字母，以及`2`和`6`之间的一系列数字。请记得在正则表达式中包含恰当的标志。
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# --hints--
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你的正则表达式`myRegex`应该匹配 17 项。
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```js
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assert(result.length == 17);
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```
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你的正则表达式`myRegex`应该使用全局标志。
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```js
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assert(myRegex.flags.match(/g/).length == 1);
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```
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你的正则表达式`myRegex`应该使用忽略大小写的标志。
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```js
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assert(myRegex.flags.match(/i/).length == 1);
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```
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# --seed--
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## --seed-contents--
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```js
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let quoteSample = "Blueberry 3.141592653s are delicious.";
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let myRegex = /change/; // Change this line
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let result = myRegex; // Change this line
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```
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# --solutions--
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```js
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let quoteSample = "Blueberry 3.141592653s are delicious.";
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let myRegex = /[h-s2-6]/gi; // Change this line
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let result = quoteSample.match(myRegex); // Change this line
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```
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