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>
59 lines
1.5 KiB
Markdown
59 lines
1.5 KiB
Markdown
---
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id: 587d7db3367417b2b2512b8e
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title: 使用测试方法
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challengeType: 1
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forumTopicId: 301369
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dashedName: using-the-test-method
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---
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# --description--
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在编程语言中，正则表达式用于匹配指定的字符串。通过正则表达式创建匹配模式（规则）可以帮你完成指定匹配。
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如果想要在字符串`"The dog chased the cat"`中匹配到`"the"`这个单词，可以使用如下正则表达式：`/the/`。注意，正则表达式中不需要引号。
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JavaScript 中有多种使用正则表达式的方法。测试正则表达式的一种方法是使用`.test()`方法。`.test()`方法会把编写的正则表达式和字符串（即括号内的内容）匹配，如果成功匹配到字符，则返回`true`，反之，返回`false`。
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```js
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let testStr = "freeCodeCamp";
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let testRegex = /Code/;
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testRegex.test(testStr);
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// Returns true
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```
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# --instructions--
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使用`.test()`方法，检测字符串`myString`是否符合正则表达式`myRegex`定义的规则。
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# --hints--
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你应该使用`.test()`方法来检测正则表达式。
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```js
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assert(code.match(/myRegex.test\(\s*myString\s*\)/));
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```
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你的返回结果应该为`true`。
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```js
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assert(result === true);
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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 myString = "Hello, World!";
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let myRegex = /Hello/;
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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 myString = "Hello, World!";
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let myRegex = /Hello/;
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let result = myRegex.test(myString); // Change this line
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```
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