Change first line number

Question

How to change first line number after call of constructor

var editor = CodeMirror.fromTextArea(document.getElementById("codemirror"), {
    firstLineNumber: 5 // how to change later?
});

use editor.firstLineNumber = 10; don't work.

Answer 1

As specified in the doc, you can change configuration with that function: setOption.

So in you case, you can code:

editor.setOption('firstLineNumber', 10);