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9-regular-expressions/14-regexp-lookahead-lookbehind/article.md 内容删改 #987

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Merged
leviding merged 1 commit into from
Jan 2, 2022
Merged

9-regular-expressions/14-regexp-lookahead-lookbehind/article.md 内容删改 #987

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4 changes: 0 additions & 4 deletions 4 9-regular-expressions/14-regexp-lookahead-lookbehind/article.md
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Expand Up @@ -82,10 +82,6 @@ let reg = /(?<=(\$|£))\d+/;
alert( str.match(reg) ); // 30, $
```

请注意，对于后瞻断言，顺序保持不变，尽管前瞻括号在主模式之前。

通常括号是从左到右编号，但是后瞻断言是一个例外，它总是在主模式之后被捕获。所以 `pattern:\d+` 的匹配会首先进入结果数组，然后是 `pattern:(\$|£)`。


## 总结

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