Save Safari javascript console to file?

Click inside the console, ⌘s. There is no step 3.

Note that this saves the output in plain text so there's no colorization, highlighted fields, etc.

I figured something out:

While holding down SHIFT, select the start of the part you want. Then release SHIFT and scroll down with the scrollbar.

Shift-click again on the end of the selection. Then you can copy/paste as needed.