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試圖實現與聲音類別功能的勇氣,但我做錯了什麼:型「重點」不能用於索引類型「對象」
function pluck<Object extends {}, Key = keyof Object>(key: Key): (o: Object) => Object[Key] {
return object => object[key];
}
TS錯誤:
Type 'Key' cannot be used to index type 'Object'