how to trigerbs select change event in jquery code example

Example 1: jquery select box change event

$('select').on('change', function (e) {
    var optionSelected = $("option:selected", this);
    var valueSelected = this.value;
    ....
});

Example 2: trigger change select element jquery

$('#selectField').val(10).trigger('change');

or

$('#selectField').val(10).change();