Inserting a new text at given cursor position

Question

I am working on customizing the codemirror for my new language mode. As part of this new mode implementation, I am writing a new tool bar where user can select some text and

Answer 1

Final function to insert text at current cursor position in a performant way. Hope it helps.

function insertStringInTemplate(str)
{
    var doc = editor_template.getDoc();
    var cursor = doc.getCursor();

    var pos = {
        line: cursor.line,
        ch: cursor.ch
    }

    doc.replaceRange(str, pos);
}