Understand Asynchronous Tasks with Coffee Shop Example ☕
I am a software engineer with 4 years of professional experience, currently specializing in full-stack development.
I work a lot with HTML, CSS, JavaScript, and Python and regularly use React, Vue, and Django to build single-page applications and marketing landing pages.
I also work with React Native to build mobile applications with optimized experiences and for businesses who want to ship products in the market quickly.
Currently, I am a part of a team of 8 as a full-stack engineer where I focus on accessibility, component-driven approaches, and building systems that can scale with ease.
Asynchronous programming is a form of parallel programming that allows a unit of work to run separately from the primary application thread.
When the work is complete, it notifies the main thread.
Let's take a real-life example to better understand the concept.
Coffee Shop Example
Jack: Hi. Please can I have a coffee? (First asynchronous task)
First barista: For sure. Do you want something else?
Jack: A piece of cake while waiting for the coffee to be ready. (Second asynchronous task)
First barista: For sure.
( Launch the preparation of the coffee )
First Attendant: Anything else?
Jack: No.
First barista: 5 dollars, please.
Jack: Pay the money and take a seat.
First barista: Start serving the next customer.
Jack: Start checking Twitter while waiting.
Second barista: Here's your cake. (Second asynchronous task call returned.)
Jack: Thanks!
First barista: Here's your coffee. (First asynchronous task call returned.)
Jack: Hey, thanks! Take his stuff and leave.
To make it simple, while you are waiting for someone else to do something for you, you can do other tasks or ask others to do more things for you.
This is basically asynchronous process.
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