如何在 Javascript 中填充默认下拉列表

Question

再会我下面的代码将仓库列表填充到下拉列表中，这是我想要的，但我也希望isMainWarehouse = true在填充仓库时使用默认选择的仓库（请注意，只有一个主仓库）function PopulateWarehouses() {var warehouseDropDown = document.getElementById('SelectWarehouse');var warehouseFragment = document.createDocumentFragment();_warehouseRepository.getWarehouses().done(function (data) {    for (var element in data.items) {        if (data.items.hasOwnProperty(element)) {            var recievedData = data.items[element];            var id = recievedData.id;            var name = recievedData.warehouseName;            var main = recievedData.isMainWarehouse;            var opt = document.createElement('option');            opt.innerHTML = name;            opt.value = id;            warehouseFragment.appendChild(opt);        }    }    warehouseDropDown.appendChild(warehouseFragment);    $('#SelectWarehouse').selectpicker('refresh');});}这是我的下拉菜单 <select id="SelectWarehouse" name="SelectWarehouse" class="selectpicker show-tick  form-control" data-live-search="true"></select>这个方法只是获取所有仓库的列表 // GET: get list of all warehouses    public async Task<ListResultOutput<WarehouseListDto>> GetWarehouses()   {        var warehouses = await _warehouseRepository.GetAllListAsync();        ListResultOutput<WarehouseListDto> dto = new ListResultOutput<WarehouseListDto>(                 warehouses                .OrderBy(t => t.WarehouseName)                .ToList()                .MapTo<List<WarehouseListDto>>()            );        return dto;    }