Document de valor indefinido.getElementById
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
SAMER SAEID
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>const result = { "mytable": [ { "IDKabupaten": "3301", "Kabupaten": "CILACAP", "attribut": [ { "IDProvinsi": "33" } ] }, { "IDKabupaten": "3302", "Kabupaten": "BANYUMAS", "attribut": [ { "IDProvinsi": "33" } ] } ] };
$.each(result.mytable,function(i) {
console.log(result.mytable[i].IDKabupaten);
$.each(result.mytable[i].attribut, function (j) {
console.log(result.mytable[i].attribut[j].IDProvinsi)
});
});