Programming paradigm

The way you think while coding.

The way you think while coding is called a programming paradigm. It shapes how you approach problems, how you structure code, and how you interact with your computer.

To understand Object-Oriented Programming (OOP), you first need to understand where it fits among the different programming paradigms.

OOP is just one style among several- but it stands out because it models real-world thinking:

“Everything is an object”.

Imperative- How do I have to start and finish this?

const list = document.createElement('ul');
for (let i = 0; i < items.length; i++) {
  const li = document.createElement('li');
  li.textContent = items[i];
  list.appendChild(li);
}
document.body.appendChild(list);

You give the computer step-by-step instructions-every detail is controlled manually.

Declerative-What do you want me to do?

<ul>
  {items.map(item => <li key={item}>{item}</li>)}
</ul>

You describe the desired outcome, and let the system handle how it gets there.

After reviving both styles in our mind’s eye, we can pass through their subsets: