How do I have different font colors in a textarea?

Question

I want the font color to change in a textarea as I type in specific keywords, like in Visual Studio.

I have not seen this anywhere, so I don\'t know if this is possible

Answer 1

You would probably have to run javascript on the client to detect when the text changes, then replace the text to be highlighted with some child html elements with the proper style.

For example

Original text:

This is what the user typed.

Highlighted text

This is what the user typed.