正则表达式忽略带前缀的字符

Question

I have this js function:

value.replace(/[\\\\\\*\\+\\^\\?\\$\\[\\]\\{\\}\\-]/g, '\\\\$&');

which replace:

* , + , ^ , ? , & , { , }
with:
\\* , \\+ , \\^ , \\? , \\& , \\{ , \\}

but when i have .+ i need it to not be replaced with .\\+

what do i need to change in my regex?

Answer 1

我认为您可以简单地从正则表达式中删除\\+ ，使其形成： value.replace(/[\\\\\\*\\^\\?\\$\\[\\]\\{\\}\\-]/g, '\\\\$&');