Prototypes

Prototypes are a way to make our code more efficient, especially when using constructors. Take the following code for example…

function Animal(name){
    this.animalName = name;
    this.grunt = function(){
        console.log(‘ugh!’);
    };
}
let gorilla = new Animal(‘Bongo’);
gorilla.grunt(); 

Imagine we have one thousand animals. When we use the “new” keyword, the data basically gets copied to the new object. So we would create one thousand grunt functions. Maybe we do not need one thousand and only want one to save memory and improve performance. We have to change our constructor a bit…

function Animal(name){
    this.animalName = name;
}
Animal.prototype.grunt = function(){  
    console.log(‘ugh!’);
};
let gorilla = new Animal(‘Bongo’); gorilla.grunt(); 

The output will be the same…”ugh!”. The difference is we have saved memory and improved performance if we want to create a whole bunch of animals. We can also use the “this” keyword in prototype…

function Animal(name){
    this.animalName = name;
}
Animal.prototype.grunt = function(){
    console.log(‘ugh!…says ’ + this.animalName);
};
let gorilla = new Animal(‘Bongo’);
gorilla.grunt(); 

Here the output will be “ugh!…says Bongo”

Happy Coding!

Clay Hess

More To Explore

computer, laptop, work place-2982270.jpg
Code

Unlocking Wireless Communication: A Dive into the Bluetooth API

Wireless communication has become an integral part of our daily lives, and Bluetooth technology is at the forefront of this revolution, enabling devices to exchange data over short distances and creating a world more interconnected than ever before. At the heart of this technology lies the Bluetooth Application Programming Interface (API), a powerful tool for developers looking to harness the capabilities of Bluetooth in their applications. In this blog post, we’ll explore what the Bluetooth API is, how it works, and the possibilities it opens up for innovation in wireless communication.

lighthouse, beacon, atlantic-8578318.jpg
Code

Understanding the Beacon API: Simplifying Asynchronous Data Transfers

In today’s data-driven world, web applications often need to send data back to the server. Traditionally, this has been done using AJAX requests or similar methods. However, these techniques can come with a cost, especially when dealing with data that needs to be sent during the unload phase of a document, such as tracking and diagnostic data. This is where the Beacon API shines by allowing developers to send data to a server more reliably and efficiently.

Share This Post

small_c_popup.png

Need help?

Let's have a chat...


Login

Jump Back In!

Here at Webolution Designs, we love to learn. This includes sharing things we have learned with you. 

Register

Begin Your Learning Journey Today!

Come back inside to continue your learning journey.