Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]

Answer 1

say you want to find params[:user][:email] but it's not sure whether user is there in params or not. Then-

you can try:

params[:user].try(:[], :email)

It will return either nil(if user is not there or email is not there in user) or otherwise the value of email in user.