什么似乎是正确的正则表达式在替换函数中不起作用(What seems to be a correct regex doesn't work in replace function)

什么似乎是正确的正则表达式在替换函数中不起作用(What seems to be a correct regex doesn't work in replace function)

我试图匹配三个连续的点（“。”），然后选择一个空格。

我的想法如下：

\.\.\.\s?

在这里进行了测试 ，似乎完全符合预期。

但是当我尝试在javascript的替换函数中使用它时它似乎不起作用，除非我遗漏了一些愚蠢的东西，否则它很奇怪：

replace("\.\.\.\s?", "")

不起作用，请看这里的现场演示 。

我错过了什么？

I am trying to match three consecutive dots (".") followed optionally by a space.

My idea was the following:

\.\.\.\s?

Tested it here and seems to do exactly as expected.

But then when I try to use it in the replace function with javascript it doesn't seem to work, it's quite weird unless I'm missing something silly:

replace("\.\.\.\s?", "")

Doesn't work, see live demo here.

What am I missing?

最满意答案

正则表达式不应该在引号中。 尝试...

mystr.replace(/\.\.\.\s?/, "")

的jsfiddle

The regex shouldn't be in quotes. Try...

mystr.replace(/\.\.\.\s?/, "")

jsfiddle