do you need to commit before git stash code example

Example 1: git stash

git stash or git stash push

Example 2: git stash

$ git stash list
stash@{0}: WIP on master: 049d078 Create index file
stash@{1}: WIP on master: c264051 Revert "Add file_size"
stash@{2}: WIP on master: 21d80a5 Add number to log