[rand01m]

function isContains(number, array) {
      var dig = number.toString(),  outArr ;
      outArr = array.filter(function(num) {
         return dig.indexOf(num)!=-1;
      }); 
      return    outArr.join(',')==array.join(',');
}
alert(isContains(149, [4,9]))

isContains(449, [4,9])
//false