how to append list to dropdown in jquery code example

Example 1: jquery add items to select input

$("#selectList").append(new Option("option text", "value"));

Example 2: how to append values to dropdown using jquery

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 $.each(obj , function (key, value) {
                                $('#GroupName').append($('<option>',
                                    {
                                    value: value.id,
                                    text: value.Group_Name
                                }));