There is no difference in JavaScript, they have the same semantics & meaning. However, single quotes have two advantages (IMO, since this is obviously subjecti

There is no difference in JavaScript, they have the same semantics & meaning. However, single quotes have two advantages (IMO, since this is obviously subjective): 1. can be typed without shift on US keyboard layout 2. I use double quotes inside string literals (e.g. for quoting bad input in error messages) more often than single quotes (mostly used for contractions) so not having to escape double quotes by default is convenient. Standard (and I guess eslint?) support "single quotes unless a single quote appears in the string", which is ideal (for me).