33 lines
706 B
Markdown
33 lines
706 B
Markdown
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---
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title: Match Beginning String Patterns
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localeTitle: 匹配开始字符串模式
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---
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## 匹配开始字符串模式
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## 问题
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使用正则表达式中的插入符号只能在字符串rickyAndCal的开头找到“Cal”。
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### 提示1：
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尝试用斜杠包围你的正则表达式
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```javascript
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let testExp = /^test/;
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// returns true or false depending on whether test is found in the beginning of the string
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```
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### 提示2：
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尝试在括号外使用'^'字符插入符号，如上例所示
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### 扰流警报 - 提前解决
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## 解
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```javascript
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let rickyAndCal = "Cal and Ricky both like racing.";
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let calRegex = /^Cal/; // Change this line
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let result = calRegex.test(rickyAndCal);
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```
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