桶排序-Node.js

Posted 2020-08-09

const b = [5, 2, 3, 1, 8];
var a = [],
    i;

for (var i = 0; i < b.length; i++) {
    var num = b[i];
    a[num] = a[num]||0;
    a[num] ++;    
    num == null;
}

for (var i = 0; i < a.length; i++) {
    if(a[i]) console.log(i);
}