I am wondering if there is any shortcut to select all text in the input cell to comment out.
Normally to comment a line, I type all the line then use mouse to select all text and then press Alt + /. However, I am curious if there is any way to select all text for commenting out or if you know other ways to comment without having to use the mouse in between.
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You could press Ctrl+. a few times until the whole expression is selected. Or you could press Up until you get to the line between your cell and the cell above in, then press Shift+Down to select your cell.
