Learn JavaScript OOP: A Primer for Web Development

Learn JavaScript OOP: A Primer for Web Development

JavaScript has great support for OOP (Object-Oriented Programming), even if its often overlooked. Today, we explore how OOP can level-up your web development projects.

JavaScript has great support for OOP (Object-Oriented Programming), even if its often overlooked. Today, we explore how OOP can level-up your web development projects.

JavaScript may not be what comes to mind when someone mentions an OOP language, but the fact is it has great support for OOP — it just has its intricacies that need to be understood first.

If you’re coding in JavaScript, getting familiar with OOP principles can make your life easier for a few reasons:

  • It’s easier to debug your code when you use objects and classes.
  • You’re able to use techniques like encapsulation and inheritance.
  • You’ll have an easier time getting hired on a team using OOP principles for their code.

Here, you’ll learn the basics of Object-oriented JavaScript in ES5 and ES6 so that you can see the comparisons and how JavaScript has trended towards an OOP style. First, this post looks at OOP in ES5 and the basics you’ll need to know such as objects, constructor functions, and the syntax that is associated with accessing object properties.

Towards the back-half, the post will look at OOP in ES6 and the use of classes, prototype properties, and methods.

What is OOP (Object-Oriented Programming)?

If you’re familiar with other languages such as C## and Java, then you’ve probably heard the term Object-Oriented Programming (OOP).

Object-oriented programming is a style of programming — not a tool — which is why even though it’s an older style, it’s still very popular and widely used. This style involves breaking a program into segments of objects that can communicate with each other. Each object is defined by its own set of properties, which can then be accessed and modified through various operations.





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