14. Asynchronous Code in JS

Módulo 1 · Multimedia Course's Objectives

Módulo 2 · Multimedia Try catch blocks

Módulo 3 · Multimedia Synchronous Execution

Módulo 4 · Mapa mental Asynchronous Code

Módulo 5 · Mapa mental The event loop

Módulo 6 · Multimedia Callback functions

Módulo 7 · Multimedia Nested Callbacks

Módulo 8 · Multimedia Add more rulers

Módulo 9 · Multimedia Callback Hell

Módulo 10 · Multimedia Promises

Módulo 11 · Multimedia The .then() function

Módulo 12 · Multimedia Chain promises

Módulo 13 · Multimedia Promisify everything

Módulo 14 · Multimedia Catching a promise error

Módulo 15 · Diagrama de flujo AJAX Calls Estás aquí

Módulo 16 · Multimedia The fetch API

Módulo 17 · Multimedia Working with JSON data

Módulo 18 · Multimedia Fetch Json

Módulo 19 · Multimedia Weather Info exercise

Módulo 20 · Multimedia Async/await

Módulo 21 · Multimedia Async/Await weather Rewrite

Módulo 22 · Multimedia Promise.all

Módulo 23 · Multimedia Make multiple requests at once

Cerrar el curso

AJAX Calls

AJAX was introduced back in 2005, and it stands for Asynchronous JavaScript And XML.

In reality when we refer to AJAX calls, we mean the communication between a client and the server that takes place asynchronously (at the background).

Normally the client-server model requires a client to make a request from a server in order to send or receive some data from it. This operation could take more than 1-2 seconds, and if we do it synchronously, then we will pause the execution of our page until the response comes back. Luckily by making AJAX calls the whole request-response happens on the background (the user many times doesn't even notice) asynchronously.

That means that when the response comes back from the server, the whole page doesn't need to be reloaded as before. Thus we update only a small portion of the page, without refreshing everything.

AJAX Calls

14. Asynchronous Code in JS

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