小编chi*_*chi的帖子

var arr1 = [3, 'a', 'a', 'a', 2, 3, 'a', 3, 'a', 2, 4, 9, 3];
var mf = 1;
var m = 0;
var item;

for (var i = 0; i < arr1.length; i++) {
  for (var j = i; j < arr1.length; j++) {
    if (arr1[i] == arr1[j]) m++;
    if (mf < m) {
      mf = m;
      item = arr1[i];
    }
  }

  m = 0;
}

alert(item + " ( " + mf …