typescript定义类型和async之间怎么配合使用

问题描述

问 题

interface Obj{
  title: string,
  location: string
}

function getPlace(){
  return new Promise(function(resolve, reject){
    resolve({
      title: "titleABC",
      location: "locationABC"
    })
  })
}

async function showPlace(){
  const place:Obj = await getPlace();
  return place;
}

这里会报错

解决方案

async function test1(): Promise<string> {
    return "hello";
}

async function test2(): Promise<any> {
    return new Promise(resolve => {
        setTimeout(() => {
            resolve("world");
        }, 200);
    });
}

(async () => {
    const h: string = await test1();
    const w: any = await test2();
    console.log(h, w);
})();

这篇关于typescript定义类型和async之间怎么配合使用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！