JavaScript正则表达式空白字符 [英] JavaScript regex whitespace characters

问题描述

我已经做了一些搜索，但是我找不到JavaScript正则表达式中\s中包含的空格字符的确切列表。

I have done some searching, but I couldn't find a definitive list of whitespace characters included in the \s in JavaScript's regex.

我知道我可以依赖空格，换行，回车和制表符作为空白，但我认为，因为JavaScript传统上只用于浏览器，可能是URL编码的空格和& nbsp; 和％20 。

I know that I can rely on space, line feed, carriage return, and tab as being whitespace, but I thought that since JavaScript was traditionally only for the browser, maybe URL encoded whitespace and things like   and %20 would be supported as well.

JavaScript的确切考虑因素正则表达式编译器？如果浏览器之间存在差异，我只关心webkit浏览器，但知道任何差异会很好。那么，node.js呢？

What exactly is considered by JavaScript's regex compiler? If there are differences between browsers, I only really care about webkit browsers, but it would be nice to know of any differences. Also, what about node.js?

推荐答案

HTML！= Javascript。 Javascript完全是字面值，％20是％20，& nbsp; 是一串字符& n b s p和;对于字符类，我认为几乎所有perl中的RegEx都适用于JS（你不能做命名组等）。

HTML != Javascript. Javascript is completely literal, %20 is %20 and   is a string of characters & n b s p and ;. For character classes I consider nearly every that is RegEx in perl to be applicable in JS (you can't do named groups etc).

http://www.regular-expressions.info/javascript.html 是我使用的参考资料。

http://www.regular-expressions.info/javascript.html is the refernece I use.

这篇关于JavaScript正则表达式空白字符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！