Maintainable JavaScript — Removing Methods and Inheritance

Maintainable JavaScript — Removing Methods and Inheritance

Creating maintainable JavaScript code is important if want to keep using the code. In this article, we’ll look at the basics of creating maintainable JavaScript code by looking at avoiding changing objects we don’t own.

Creating maintainable JavaScript code is important if want to keep using the code.

In this article, we’ll look at the basics of creating maintainable JavaScript code by looking at avoiding changing objects we don’t own.

Don’t Remove Methods

Removing methods from objects we didn’t create is also easy.

For instance, we can write:

document.getElementById = null;

Then we made document.getElementById null .

Now getElementById is no longer a function.

So we can’t call it.

Also, we cal delete properties with the delete operator.

delete operator works on regular objects, so we can write:

let person = {
  name: "james"
};
delete person.name;

and we remove the name property, so person.name would be undefined .

However, this operator has no effect on built-in library methods.

So if we write:

delete document.getElementById

that has no effect.

Removing existing methods is definitely a bad practice.

Developers expect the object to have methods described in the library documentation.

And existing code may be using the methods since everyone expected them to be there.

If we want to remove a method, then we should deprecate them so that they won’t be used for new code and will be removed from the existing code.

Then once they’re all gone, then we can remove it.

Removing would be the very last step.

programming software-development javascript web-development technology

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

Offshore Software Development - Best Practices

To make the most out of the benefits of offshore software development, you should understand the crucial factors that affect offshore development.

Software Developer vs Web Developer | Difference Web Developer & Software Developer

Software Developer vs Web Developer | Difference Web Developer & Software Developer | Software development and web development are normally used interchangeably. Although both include development, a software developer has different responsibilities from that of a web developer.

5 Core Criteria for Selecting Software Development Company - TopDevelopers.co

Check out these five criteria for the selection of your software vendor, and you will never regret having the wrong quality product made for you.

Offshore Software and Web Application Development Company- MobiWeb Technologies

Mobiweb Technologies is a prestigious IT company headquartered in Indore providing promising and cost effective software and web development services across the globe.

Offshore Software and Web Application Development Company- MobiWeb Technologies

Mobiweb Technologies is a prestigious IT company headquartered in Indore providing promising and cost effective software and web development services across the globe.