elementui的resolve用法？

Question

tree树形懒加载，然后resolve出来了data，但是在想默认展示第一层，需要改下第一段代码，下面第一段代码怎么能弄成和第二段一样，resolve之后用then方法执行nextTick呢

  const thatData = [{"label":"导航权限菜单","id":"","isLeaf":false}]
  return resolve(thatData);

  await this.$http.menuList(postData,true)
    .then((res) => {
      const thatData = [{"label":"导航权限菜单","id":"","isLeaf":false}]
      return resolve(thatData);
    })
    .then(() => {
      this.$nextTick(() => {
        let nodeData = node.childNodes[0];
        nodeData.expanded = true;
        nodeData.loadData();
      });
    }

Answer 1

https://es6.ruanyifeng.com/#d...

使用 new Promise() 封装一下就可以继续 then

Answer 2

async loadfirstnode(node,resolve) {
  const thatData = [{"label":"导航权限菜单","id":"","isLeaf":false}]
  resolve(thatData);
  this.$nextTick(() => {
    // ...
  });
}

这样？