Javascript 将参数用作属性键

假设我得到了这个函数：

  vm.setSelectedItem = function(itemName, searchedItems){
    vm.selectedItem = _.findWhere(searchedItems, {name: itemName});
  };

我需要让“名字”动态化

我该怎么做？

试试：

vm.setSelectedItem = function(itemName, searchedItems, propertyKey)
{
    var obj = {};
    obj[ propertyKey ] = itemName;

    vm.selectedItem = _.findWhere(searchedItems, obj); //How do I use the arg propertyKey here?
};

---

或者，在ES6中：

var obj={[propertyKey]：itemName}

恕我直言，这和我发布的答案不一样吗？@gurvinder372我没有看到你的答案，但你已经快了20秒。别担心，希望它能解决OP的问题

vm.setSelectedItem = function(itemName, searchedItems, propertyKey)
{
    var obj = {};
    obj[ propertyKey ] = itemName;

    vm.selectedItem = _.findWhere(searchedItems, obj); //How do I use the arg propertyKey here?
};

  vm.setSelectedItem = function(itemName, searchedItems, propertyKey){
    var obj = {};
    obj[propertyKey] = itemName;
    vm.selectedItem = _.findWhere(searchedItems, obj);
  };