FAQ: Requests II - Review Requests II

This community-built FAQ covers the “Review Requests II” exercise from the lesson “Requests II”.

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This exercise can be found in the following Codecademy content:

Web Development

Introduction To JavaScript

FAQs on the exercise Review Requests II

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Hello Everyone!

In the review of this lesson (https://www.codecademy.com/courses/introduction-to-javascript/lessons/requests-ii/exercises/review-requests-ii?action=resume_content_item) there is a statement:

" await is a keyword that is used to tell a program to continue moving through the message queue while a promise resolves."

In this lesson (https://www.codecademy.com/courses/introduction-to-javascript/lessons/async-await/exercises/await-operator?action=resume_content_item) there is a statement:

" await halts, or pauses, the execution of our async function until a given promise is resolved"

Sounds opposite in my opinion. Could you explain please where my misunderstanding is?

2 Likes

The final lessons of intro to JS talk about Promise, async…await, fetch, and AJAX. I am curious about the difference between them.

For example, is AJAX a framework that we can implement using promises, async…await, or fetch?

Or are the four simply different ways to create asynchronous server-client operations? If so, how do we know when to use which?

1 Like

I interpreted this as await halts/pauses the current async request, and continues moving through the message queue until the promise is resolved, then the async request continues.

So, rather than waiting for the request to finish before doing anything else, it puts a hold on the action that may take some time to complete, continues with the rest of the queue, then resumes the held action when the promise is ready. Hope this helps.

1 Like