用html元素替换单词

Question

I am working on a Twitter program and am stuck on how to replace words with html elements. For example:

Replace: Hello #World, This is a Tweet!

With: Hello <a href="">#World</a>, this is a Tweet!

I know that you can use regex in replace() but I am unsure of how to reference to the matched string after in the second argument of replace()

Thank you!

Answer 1

You can use this regular expression

str="Hello #World"
str.replace(/#(\S*)/g,'<a href="">$1</a>');