Exploring the single responsibility principle
The single responsibility principle (SRP) is one of the fundamental concepts in software engineering, asserting that a function, class, or, in the context of React, a component, should have only one reason to change. In other words, each component should ideally handle a single task or functionality. Following this principle can make your code more readable, maintainable, and easier to test and debug.
Let’s illustrate this with an example. Suppose you initially have a BlogPost component that fetches blog post data, displays the post, and handles the user liking the post, all in one component:
import React, { useState, useEffect } from "react";
import fetchPostById from "./fetchPostById";
interface PostType {
id: string;
title: string;
summary: string;
}
const BlogPost = ({ id }: { id: string }) => {
const [post, setPost] = useState<PostType>(EmptyBlogPost...
