Why can axios, promises be returned, but not the result of a promise?

Question

JavaScript

Why the first use case works and the second one doesn't.
Why can't you get the result of a promise right away?

Answer 1

Because asynchrony.

async getUser(userId) {
return await instance.get('...')
}

The most convincing request is not to insert screenshots, but to use the code markup tools built into the platform.

Answer 2

Why the first use case works and the second one doesn't.

because they have different output data, regardless of promises.
In the first case, a promise will be returned in which the result of the query will be.
in the second case, a promise will be returned in which there will be a data field from the query result.
for example, in the first case the data will contain `{data: {x:1}}` and in the second case `{x:1}`
it is obvious that different data will lead to different results.
A promise there or not a promise is the tenth thing, in terms of promises, both options are identical.

Answer 3

You understand how promises work, right?
In both cases, when you call getUser() , a promise will be returned, but it will be resolved with different
parameters
. But the getUser method must return something as soon as it is called. It returns a pending promise until the promise is resolved/rejected . If the promise is resolved, the then method will be executed and you will be able to return some custom value from the promise. Has it
become a little clearer?