Sort函数小Tips??❤️????

const zm = ['abc','cba','dda','hjkh'];
zm.sort();

const sz = ['12','453','748465','23132'];
sz.sort((a,b) => {
return b-a; (a-b)  升序  / 降序
})

const arry = [
    {name:"a",num:"20"},
    {name:"b",num:"210"},
    {name:"c",num:"220"},
    {name:"d",num:"230"},
]
function sortarry(property) {
return function(a,b){
var  v1 = a[property];
var  v2 = b[property];
return v1-v2;/v2-v1;   升序/降序
    }
}
arry.sort(sortarry('num'));