Javascript正则表达式拆分拒绝null [英] Javascript regex split reject null

问题描述

是否可以使JavaScript正则表达式拒绝空匹配？

Is it possible to make a JavaScript regex reject null matches?

可以告诉String.split（）方法拒绝空值吗？

Can the String.split() method be told to reject null values?

console.log("abcccab".split("c"));
//result: ["ab", "", "", "ab"]
//desired result: ["ab", "ab"]

-

在我测试时，我偶然发现了事故的部分答案：

While I was testing this I came across a partial answer on accident:

console.log("abccacaab".split(/c+/));
//returns: ["ab", "a", "aab"] 

但是，当比赛开始时会出现问题：

But, a problem arises when the match is at the start:

console.log("abccacaab".split(/a+/));
//returns: ["", "bcc", "c", "b"]
//          ^^

有一个干净的答案吗？或者我们只需要处理它？<​​/ p>

Is there a clean answer? Or do we just have to deal with it?

推荐答案

这不是一个正则表达式解决方案，但过滤器会快速它的工作。

This isn't precisely a regex solution, but a filter would make quick work of it.

"abcccab".split("c").filter(Boolean);

这将过滤掉假货价值观。

This will filter out the falsey "" values.

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