JavaScript

$('.someClassName').each(function(){
    // inspect the parent here
});

if(oel[i] != arrIns[11]) {
            arr = new Array(35);
            arr[i] = oel[i];
            console.log(Array.isArray(arr)); // false
            //arr = arr.join("|");
            //arr.lenght = 35;
            //console.log(arr);
            //if(arr[i] == oel[i]) { arr[i] = true; }
            //arr[i].IsNumeric(); // = this.value;
            //q = Math.floor(35/6);
            //document.write(arr[q].join('\n'), ", ");
            //openPage = function() { location.href = "unlucky2.html?Key=" + arr[i]; }
            //document.getElementById('copy_' + arr[i].id).innerHTML = arr[i].value;
            }
            delete oel[i];

other numbers that I get to do again, I can not make any other I've ever wanted in an array. an array that 49 elemented to 35 elemented array wanted to assinging and unlucky enough to get a heap of numbers that I wanted to do...

I do not know exactly but I think that your knowledgeable is enough on this job. Might I asked that you question "How old are you?"...

var arr = []; // You do *not* need to use new Array
var c = 0;

for (var i=0; i < oel.length; i++) {
  var e = 0;
  while (e < arrIns.length) {
    if (oel[i] != arrIns[e]) {
       arr[c] = oel[i];
       c++;
    }
    e++;
  } // while-loop

} // for-loop
oel.length = 0; // reset oel array length to zero, so that you can use the array again

if(oel[i] != arrIns[11])
    { oel[i]; }; // When i wrote document.write(oel[i] code in this line I can archive these numbers.

delete oel[i];

Quote:

that is exactly the last 3 weeks I wanted to get back remaining array of numbers. The number that is 49 - 18 = 31

// add this after the line } // while-loop
document.write(arr.toString()); 

// add this after the line } // while-loop
document.write(arr.toString());
//instead of arr[add++] method is better useful in this line.

var arrIns  = [ "1","21","24","28","42","48",
                "12","23","34","36","37","46",
                "3","18","19","25","44","45"  ];

var arrLot  = [];
var arr     = [];
var add     = 0;

for(var i=1; i<50; i++)
{
    arrLot[i] = i;
    if(arrLot[i] != arrIns[0])
    if(arrLot[i] != arrIns[1])
    if(arrLot[i] != arrIns[2])
    if(arrLot[i] != arrIns[3])
    if(arrLot[i] != arrIns[4])
    if(arrLot[i] != arrIns[5])
    if(arrLot[i] != arrIns[6])
    if(arrLot[i] != arrIns[7])
    if(arrLot[i] != arrIns[8])
    if(arrLot[i] != arrIns[9])
    if(arrLot[i] != arrIns[10])
    if(arrLot[i] != arrIns[11])
    if(arrLot[i] != arrIns[12])
    if(arrLot[i] != arrIns[13])
    if(arrLot[i] != arrIns[14])
    if(arrLot[i] != arrIns[15])
    if(arrLot[i] != arrIns[16])
    if(arrLot[i] != arrIns[17])
    if(arrLot[i] != arrIns[18])
    if(arrLot[i] != arrIns[19])
        { arr[add++] = arrLot[i];}
}

// create and initialise - array to keep track of any number taken
    var taken = new Array(49);
    for (var i=49; i>0; i--) taken[i]=false;

    var lucky = [];
    var z     = 0;

    do{
        var q = Math.round(31 * Math.random());
        if(!taken[arr[q]]) {
            lucky[z] = arr[q];
            taken[arr[q]] = true;
            document.write(lucky[z] + "  ");
            z++;
        }
    }while(z<6);