typescript中Promise的类型系统如何处理pending状态的promise对象?
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ts是编译期,promise的状态是运行时,这俩完全不相关的东西
interface DynPromise<R, T, E> {
resolve: (param?: T) => void
reject: (err?: E) => void
promise: Promise<R>
}
const constPromise = function<R, T, E> (this: DynPromise<R, T, E>) {
this.promise = new Promise((resolve: any, reject) => {
this.resolve = resolve
this.reject = reject
})
}