It’s good for your productivity by having knowledge of what you will use in your code review in order to understand how things perform and why; and it also helps you to understand when you should use what for various challenges.
When one door of happiness closes, another opens; but often we look so long at the closed door that we do not see the one which has been opened for us.
When one door of happiness closes, another opens; but often we look so long at the closed door that we do not see the one which has been opened for us.