识别JavaScript中的＃标签

Question

I need to recognise hashtags (#example) in a string using javascript and change them to

<a href='#/tags/example'>example</a>

at the moment I am using this code:

var string = '#hello This is an #example of some text';

string.replace(/(^|\s)(#[a-z\d-]+)/ig, "$1<a href='#/tags/$2'>$2</a>");

however the value of $2 still includes the # character and I need to omit this for the url

Answer 1

您可以将#移动到捕获组之外：

/(^|\\s)#([az\\d-]+)/ig