100 lines
2.2 KiB
Markdown
100 lines
2.2 KiB
Markdown
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---
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id: 587d7db4367417b2b2512b91
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title: 匹配時忽略大小寫
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challengeType: 1
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forumTopicId: 301344
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dashedName: ignore-case-while-matching
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---
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# --description--
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到目前爲止，已經瞭解瞭如何用正則表達式來執行字符串的匹配。 但有時候，並不關注匹配字母的大小寫。
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大小寫即大寫字母和小寫字母。 大寫字母如 `A`、`B` 和 `C`。 小寫字母如 `a`、`b` 和 `c`。
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可以使用標誌（flag）來匹配這兩種情況。 標誌有很多，不過這裏我們只關注忽略大小寫的標誌——`i`。 可以通過將它附加到正則表達式之後來使用它。 這裏給出使用該標誌的一個實例 `/ignorecase/i`。 這個字符串可以匹配字符串 `ignorecase`、`igNoreCase` 和 `IgnoreCase`。
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# --instructions--
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編寫正則表達式 `fccRegex` 以匹配 `freeCodeCamp`，忽略大小寫。 正則表達式不應與任何縮寫或帶有空格的變體匹配。
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# --hints--
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你的正則表達式應該匹配 `freeCodeCamp`
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```js
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assert(fccRegex.test('freeCodeCamp'));
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```
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你的正則表達式應該匹配 `FreeCodeCamp`
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```js
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assert(fccRegex.test('FreeCodeCamp'));
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```
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你的正則表達式應該匹配 `FreecodeCamp`
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```js
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assert(fccRegex.test('FreecodeCamp'));
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```
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你的正則表達式應該匹配 `FreeCodecamp`
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```js
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assert(fccRegex.test('FreeCodecamp'));
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```
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你的正則表達式不應該匹配 `Free Code Camp`
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```js
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assert(!fccRegex.test('Free Code Camp'));
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```
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您的正則表達式應該匹配字符串 `FreeCOdeCamp`
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```js
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assert(fccRegex.test('FreeCOdeCamp'));
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```
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你的正則表達式不應該匹配 `FCC`
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```js
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assert(!fccRegex.test('FCC'));
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```
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你的正則表達式應該匹配字符串 `FrEeCoDeCamp`
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```js
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assert(fccRegex.test('FrEeCoDeCamp'));
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```
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你的正則表達式應該匹配字符串 `FrEeCodECamp`
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```js
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assert(fccRegex.test('FrEeCodECamp'));
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```
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你的正則表達式應該匹配字符串 `FReeCodeCAmp`
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```js
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assert(fccRegex.test('FReeCodeCAmp'));
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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 = "freeCodeCamp";
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let fccRegex = /change/; // Change this line
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let result = fccRegex.test(myString);
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```
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# --solutions--
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```js
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let myString = "freeCodeCamp";
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let fccRegex = /freecodecamp/i; // Change this line
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let result = fccRegex.test(myString);
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```
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