Regex to wrap text with tags [duplicate]

问题

This question already has answers here:

Find a string of text in an element and wrap some span tags round it (6 answers)

Closed last year.

I need a JavaScript regex to wrap "#hashtags" with <span> tags

Example:

Before: "I need #help, please. #Thanks"

After: "I need <span>#help</span>, please. <span>#Thanks</span>"

Currently, /#\w*\b/g finds all of the #hashtags but how do I wrap them in span tags?

Thanks!

回答1:

This works -

str = "I need #help, please. #Thanks"
str = str.replace(/(\#[a-zA-Z0-9\-\_]+)/g,"<span>$1</span>");
//> "I need <span>#help</span>, please. <span>#Thanks</span>"

来源：https://stackoverflow.com/questions/21651239/regex-to-wrap-text-with-tags