index.js
function equal (a, b) {
	return (a.id || stringify(a)) === (b.id || stringify(b))
}
function equal (a, b) {
	return (a.id || stringify(a)) === (b.id || stringify(b))
}
function equal ( a , b ) { return ( a . id || stringify ( a ) ) === ( b . id || stringify ( b ) ) }
Whether one format is equal to another
Whether one format is equal to another