#TypeScript https://www.typescriptlang.org/docs/handbook/2/functions.html#construct-signatures [[コンストラクタ (TypeScript)|コンストラクタ]]を表現する型。 ```ts type NameConstructor<T> = { new (name: string): T } class SomeClass { // ... } declare const someClass: NameConstructor<SomeClass> const instance = new someClass("hoge") // ^? const instance: SomeClass ``` <button class="playground"><a href="https://www.typescriptlang.org/play?#code/C4TwDgpgBAcghgWwgYQPYDsDOwBOBXAY2FRwB4AVAPigF4oBvAKChanQgHcoAKdRCAFxRsOAJboA5gEoh5RgF9GjAgBs4mTFADKqJMjUaGzVgHoTUAHRWFSgCYRVcHNAIZsw3SgOYh8PW9xCYjIdPW9KZQCocWw4dAJoOnYuTE99dUxuACIAC1QJCCypRjNWFgA9AH4gA">Playground</a></button>