Open a second file and quit the previously opened one without saving

Question

If I do something like this:

vim
i
# Write some tmp text
# This tmp file served it's purpose, want to quit this one and open a new one
:e newfile
# E37: No write since last change (add ! to override)

To avoid that I end up doing this:

vim
i
# Write some tmp text
:q!
vim newfile

Am looking for a way to do it without the need to quit vim.

Answer 1

You want to add the following line to your vimrc:

set hidden

From :h 'hidden':

'hidden' 'hid'      boolean (default off)
            global
            {not in Vi}
    When off a buffer is unloaded when it is abandoned.  When on a
    buffer becomes hidden when it is abandoned.

This option allows you to change of buffer even if the modifications were not saved.