javascript - 等待不等待javascript

Question

我有以下代码:

var arrayAxios = [];
            
const array = async() => {
  await sleep(3000);
  _.forEach(tasks, task => {
    let res = _.includes("selected", task.value);
    if (res) {
      this.axios
        .get(url, { params: { data1 } })
        .then(response => {
          arrayAxios.push(this.axios.post(url, { dataAAA }));
        });
    }
  });
};
              
var promises = async() => {
  const arrayAxios = await array();
  await Promise.all(arrayAxios)
    .then(response => {
      resetAll_dataAAA();   // <--- my dataAAA in arrayAxios are reset before post in Promise.all!
    })
    .catch(error => {
      console.log(error);
    });
};

promises();

函数“resetAll_data()”在数据发送到 DDBB 之前执行。我找不到问题。

有什么建议吗？

非常感谢!

Answer 1

您正在寻找

async function array() {
  await sleep(3000);
  var arrayAxios = []; // declare the array locally
  _.forEach(tasks, task => {
    let res = _.includes("selected", task.value);
    if (res) {
      arrayAxios.push(this.axios
//    ^^^^^^^^^^^^^^^ push to the array immediately, not asynchronously
        .get(url, { params: { data1 } })
        .then(response => {
          return this.axios.post(url, { dataAAA }));
//        ^^^^^^ chain the promises
        })
      );
    }
  });
  return arrayAxios;
//^^^^^^ give the result to the caller
}