Typescript / Javascript：将对象数组转换为键，值对

Question

在我的应用程序（React-typescript）中，我有一些类型的文档interface IDocument {id: string;  questions: IQuestion[];}interface IQuestion {number: string;  answer: string; }所以一系列文档看起来像是：doscuments: IDocument[] = [  {id: "a",    questions: [      { number: "1", answer: "answer1" },        ... /* more number answer*/    ]},  {id: "b",    questions: [      { number: "1", answer: "answer1" },        ... /* more number answer*/    ]}];现在我想将其转换为另一种类型的形式interface IAlternative {  [key: string]: string;}具有ie的键值对alterDocs: IAlternative = {a1:"answer1", a2:"answer2",...,b1:"answer1",...}为此，我有下面的代码，但不能构造doc.id+question.number作为键和question.answer值的对documents.forEach(doc:IDocument=>{ doc.questions.forEach(question=>{    const pair= {} // I cannot construct this pair    alterDocs={...alterDocs,...pair}  })})