Highlight RegExp matches using javascript

[system27]

I’m trying to achieve an effect similar to that seen here: http://regexr.com/

I wish for the user to enter a regular expression in a text box and highlight all matches in a block of text in real-time.

I have not managed to achieve this and do not understand why the following code will not highlight the selected text.

Please find the code at the address below:

http://codepen.io/anon/pen/YqgGRE

I am very new to JavaScript so welcome any advice!

[Shikkediel]

Here’s a little something…

Demo

[Author]

Posts