--- id: 587d7db4367417b2b2512b92 challengeType: 1 forumTopicId: 301340 title: 提取匹配项 --- ## Description
到目前为止,只是检查了一个匹配模式是否存在于字符串中。还可以使用.match()方法来提取找到的实际匹配项。 可以使用字符串来调用.match()方法,并在括号内传入正则表达式。以下是一个示例: ```js "Hello, World!".match(/Hello/); // Returns ["Hello"] let ourStr = "Regular expressions"; let ourRegex = /expressions/; ourStr.match(ourRegex); // Returns ["expressions"] ```
## Instructions
利用.match()方法提取单词coding
## Tests
```yml tests: - text: 结果应该包含单词coding。 testString: assert(result.join() === "coding"); - text: 你的正则表达式codingRegex应该搜寻coding。 testString: assert(codingRegex.source === "coding"); - text: 你应该使用.match()方法。 testString: assert(code.match(/\.match\(.*\)/)); ```
## Challenge Seed
```js let extractStr = "Extract the word 'coding' from this string."; let codingRegex = /change/; // Change this line let result = extractStr; // Change this line ```
## Solution
```js let extractStr = "Extract the word 'coding' from this string."; let codingRegex = /coding/; // Change this line let result = extractStr.match(codingRegex); // Change this line ```