Bash Shell Scripting - detect the Enter key

Question

I need to compare my input with Enter/Return key...

read -n1 key
if [ $key == \"\\n\" ]
   echo \"@@@\"
fi

But this

Answer 1

None of these conditions worked for me and so I've came up with this one:

${key} = $'\0A'

Tested on CentOS with Bash 4.2.46.