My problem is that I have textarea and want to find a specified string and mark all of its occurences (something similar to what regex101.com does with regex matches).
This leads me to a more general question (see my question title) and I would like to learn if the following can be applied to parts of text inside a textarea:
Should I use something which already exists (like codemirror )?
I would also appreciate it if someone could explain the idea behind this (for example regex101.com has a textarea but also uses some span elements to highlight the matches)
Have you tried doing something like:
var textArea = document.getElementById("textArea");
textArea.style.color = 'Red';
textArea.style.backgroundColor = 'Black';
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