Editing Multiple Lines in Vim

A simple way of to edit (like commenting or uncommenting) a block of lines/code in Vim.

The example below explains how to comment multiple lines:

• Place the cursor on the first line that you’d like to edit
• Press Ctrl+v
• User the arrow keys to go down until the last line
• Press Shift+i to go into insert mode
• Press #
• Press Esc and wait a second