pq - best moves for each type.js

const ranks = "S+, S+/A-, S, S-, A+, A, A-, B+, B, B-, C+, C, C-, D+, D, D-, E+, E, E-, F+, F, F-".split(", ").reverse();

return app.pokeTypes.map( type => [
	type,
	Object.values(app.moveData)
		.filter( move => move.type === type && move.power )
		.map( move => [move.name, move.tierlistRank] )
		.sort( ([,leftRank], [,rightRank]) => ranks.indexOf(rightRank) - ranks.indexOf(leftRank) )
]).map(
	([type, [[firstName, firstRank], ...otherMoves]]) => [type, firstRank, [firstName, firstRank], ...otherMoves]
).map(
	([type, bestRank, ...moves]) => [type, bestRank, ...moves.map( ([name, rank]) => `${name} (${rank})` )]
).sort(
	([,leftRank], [,rightRank]) => ranks.indexOf(rightRank) - ranks.indexOf(leftRank)
);