ACE editor displaying a line

Question

While using ACE editor I've observed that a mysterious line is being displayed at the center of the editor. How do i fix this?

Answer 1

That line is called as Print Margin, include

editor.setShowPrintMargin(false);

in your code.

Answer 2

It is not a mysterious line but a print margin - simple line at the specified column, to help seeing when lines become too long.

To disable it we can also use,

editor.setOption("showPrintMargin", false)