有没有高手能师范一下 nodejs 怎么写代码?

nodejs 因为要异步所以总是把方法传来传去. 比如这段代码

model.Company.findOne({"name": "KFC"}).then(function (c) {
    console.log("success get company", c);
    let j = new model.Job(
        {
            title: "title",
            position: "position",
            category: "A",
            description: "description",
            location: "location",
            workType: "B",
            salary: "100",
        }
    );
    j.save().then(function (j) {
        console.log("success save job", j);
        c.addToJob(j).save().then(function (c) {
            console.log("success add to job")
        }, err => console.error("save job after company", err));
    }, err => console.error("save job", err))
}, function (err) {
    if (err) console.error.bind(console, "find company error");
});

如果是正常的语言就会很简单

c,err = find()
if err {}

err = c.add()
if err {}

job = ...
job.save()

c.add(job)

哪怕加上 groutine 异步化也可以很好看

有没有大佬能教教怎么改这段代码?