sort_by_2_cols

sort_by_2_cols.js

cars.sort( (a,b) => a.make < b.make ? -1 
                  : a.make > b.make ? 1
                  : a.price > b.price ? -1
                  : a.price < b.price ? 1
                  : 0 );

// cars is now:
[
 {id:4,make:"Bugatti",model:"Chiron Pur Sport","price":3000000,colour:"blue"},
 {id:8,make:"Bugatti",model:"Chiron Pur Sport","price":3000000,colour:"red"},
 {id:1,make:"Ferrari",model:"812GTS","price":336000,colour:"rosso corsa"},
 {id:1,make:"Ferrari",model:"812GTS","price":336000,colour:"rosso corsa"},
 {id:2,make:"Ferrari",model:"F8 Spider","price":262000,colour:"giallo modena"},
 {id:6,make:"Ferrari",model:"F8 Spider","price":262000,colour:"giallo modena"},
 {id:7,make:"Ferrari",model:"F8 Spider","price":262000,colour:"red"},
 {id:3,make:"Lamborghini",model:"Aventador S","price":329400,colour:"blu le mans"},
 {id:5,make:"McLaren",model:"New GT","price":203000,colour:"helios orange"}
]