Object-Oriented JavaScript — Async Programming

Object-Oriented JavaScript — Async Programming

Why we need async code in JavaScript?

JavaScript is partly an object-oriented language.

To learn JavaScript, we got to learn the object-oriented parts of JavaScript.

In this article, we’ll look at JavaScript async programming.

Async Programming

Async programming is an import part of JavaScript apps.

It’s different from the alternative mode, which is synchronous programming.

Synchronous programming is where we run code line by line.

And async programming is where we run some code, then wait for the result.

While we wait for the result, we let other pieces of code in the queue run.

Then once the result is obtained, then we run the code that’s waiting for the result.

This is different in that we aren’t running anything line by line.

We queued up the code and initialize them.

Then once the result is computed, we go back to run the code that’s initialized.

When the code is waiting, the latency isn’t predictable.

So we can’t just run code and then wait for the result without letting other pieces of code run.

JavaScript Call Stack

The call stack is a record of the functions that are called from latest to earliest.

For instance, if we have:

function c(val) {
  console.log(new Error().stack);

function b(val) {
function a(val) {

Then we get:

    at c ((index):37)
    at b ((index):41)
    at a ((index):45)
    at (index):47

from the console log.

javascript programming

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

Learning JavaScript: Development Environments for JavaScript Programming

One of the nice things about learning JavaScript these days is that there is a plethora of choices for writing and running JavaScript code. In this article, I’m going to describe a few of these environments and show you the environment I’ll be using in this series of articles.

Learning JavaScript: Data Types and Variables

To paraphrase the title of an old computer science textbook, “Algorithms + Data = Programs.” The first step in learning a programming language such as JavaScript is to learn what types of data the language can work with. The second step is to learn how to store that data in variables. In this article I’ll discuss the different types of data you can work with in a JavaScript program and how to create and use variables to store and manipulate that data.

[ Professor JavaScript ]: Introduction

Professor JavaScript is a JavaScript online learning courses YouTube Channel. Students can learn how to develop codes with JavaScript from basic to advanced levels through the online courses in this YouTube channel.

Now Learn JavaScript Programming Language With Microsoft

Microsoft has released a new series of video tutorials on YouTube for novice programmers to get a hands-on renowned programming language — JavaScript.

From imperative to declarative JavaScript

In this post, I will explain why declarative code is better than imperative code. Then I will list some techniques to convert imperative JavaScript to a declarative one in common situations.