64 lines
1.8 KiB
Markdown
64 lines
1.8 KiB
Markdown
---
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id: 587d7b84367417b2b2512b37
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title: 捕捉單引號和雙引號的混合用法
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challengeType: 1
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forumTopicId: 301188
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dashedName: catch-mixed-usage-of-single-and-double-quotes
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---
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# --description--
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JavaScript 允許使用單引號（`'`）和雙引號（`"`）聲明字符串。 決定使用哪一個通常看個人偏好，但有一些例外。
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如果字符串中有縮寫或存在一段帶引號的文本，你就會明白爲什麼 JavaScript 允許兩種引號了。 請注意，不要提前用引號結束字符串，這會導致語法錯誤。
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下面是混合使用引號的一些示例：
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```js
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const grouchoContraction = "I've had a perfectly wonderful evening, but this wasn't it.";
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const quoteInString = "Groucho Marx once said 'Quote me as saying I was mis-quoted.'";
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const uhOhGroucho = 'I've had a perfectly wonderful evening, but this wasn't it.';
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```
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前兩項是正確的，但第三項是不正確的。
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當然，只使用一種引號也是可以的。 可以使用反斜槓（`\`）來轉義字符串內的引號：
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```js
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const allSameQuotes = 'I\'ve had a perfectly wonderful evening, but this wasn\'t it.';
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```
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# --instructions--
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修復字符串，使其對 `href` 值使用不同的引號，或者轉義現有的引號。 在整個字符串周圍保留雙引號。
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# --hints--
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你應通過更改或轉義來修復 `href` 的值 `#Home` 周圍的引號。
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```js
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assert(code.match(/<a href=\s*?('|\\")#Home\1\s*?>/g));
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```
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你應該在整個字符串外圍保留雙引號。
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```js
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assert(code.match(/"<p>.*?<\/p>";/g));
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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 innerHtml = "<p>Click here to <a href="#Home">return home</a></p>";
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console.log(innerHtml);
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```
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# --solutions--
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```js
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let innerHtml = "<p>Click here to <a href=\"#Home\">return home</a></p>";
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console.log(innerHtml);
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```
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