I generally follow this convention: 1. Any string literal that contains either ' xor " will be delimited by the other one. 2. For all other string literals, de

I generally follow this convention: 1. Any string literal that contains either ' xor " will be delimited by the other one. 2. For all other string literals, delimit by " if it's meant for human eyes only, delimit by ' if it's meant for computers as well.