What is the best way to append / add text ?

From what I understood from the doc Code Mirror as a textfield and a rich DOM mirror that the user see.

What is the best approach to append text or add a line ?

In the doc it look like replaceRange is the way to go.

[marijnh]

Right. Use lineCount to figure out the end of the document (or just use Infinity, since positions will be clipped to the existing document), and append your text.

editor.replaceRange("foo\n", {line: Infinity});

One potentially tricky issue is that if you want to ensure your text starts on a new line, you’ll have to prepend it with a \n if and only if the document doesn’t end with a newline. That’s app-specific, and I’ll leave it to you to figure it out.

[MasseGuillaume]

Ok Thanks 😃