I just finished a little script to use in textareas that maintains bullet lists, numbering and code indentation when starting a new line.

When the return key is pressed, it checks if the line is either a bullet, numbered list or a code block and then inserts a new line with the correct indentation and bullet. When you press return on an empty line, it clears the indentation you can resume regular text input.

I know this will save me some time, and hope it will for you too.

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