Typeahead/TypeScript - 不同通用类型的多个数据集

Question

我有两个数据集，每个都有不同的通用类型。一切正常，除了

的初始化

var localDataset: Twitter.Typeahead.Dataset<Node>;
var globalDataset: Twitter.Typeahead.Dataset<Budget>;
...
typeahead(options, localDataset, globalDataset);

我收到错误

Error:(130, 13) TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly. Type argument candidate 'Node' is not a valid type argument because it is not a supertype of candidate 'Budget'.

作为解决方法，我将数据集转换为 ，但正确的解决方案是什么？

Answer 1

As a workaround I cast Datasets as , but what would be the correct solution

任何合并这两种类型的东西，例如一个 map 或只是：

type NodeOrBudget = Node | Budget;

var localDataset: Twitter.Typeahead.Dataset<NodeOrBudget>;
var globalDataset: Twitter.Typeahead.Dataset<NodeOrBudget>;
...
typeahead(options, localDataset, globalDataset);