How would one write a code editor in JavaScript? A long time ago one would take a regular textarea to handle user input and would create another div that would do syntax highlighting etc. However, this approach quickly becomes unusable when someone opens it on mobile. That’s why CodeMirror has been rewritten to use contenteditable and many other editors followed this approach. contenteditable Contenteditable, as the name suggests, allows users to edit the contents of the element using the b...
