What Design Patterns In React Do You Know?

React is clearly immensely popular and quite useful. Most online design for a long period was created using CSS, HTML, and JavaScript. React's simplicity of usage let developers exhale with much-needed relief. Among React's most prized characteristics are its reusable components, superb developer tools, and large ecosystem.

React brought a useful level of abstraction in the form of the virtual DOM idea instead of the conventional method of straight DOM manipulation.

React developers of the massive Facebook internet company are actively building and maintaining the library. This gives it the much-needed edge over rival frameworks and libraries. Many of the JavaScript community members also routinely help to enhance React by means of their contributions.

All these elements enable React to stay popular among frontend developers even if more recent frameworks are always vying for attention among developers.

React.js provides a lot of design patterns. Here is a rundown of some advised React patterns you should most surely be aware of while developing web apps.

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Why should one follow React Design Patterns?

Let us first quickly review the function design patterns provide. Design patterns are, all things considered, repeatable answers for often recurring software development problems.

Based on the specified criteria, they act as a basic template from which you may develop the functionality of the software.

One should not confuse the phrase "design pattern" with the "design system". More design systems have been covered in an other article.

Apart from accelerating the development process, design patterns simplify maintenance and reading of the code.

The Singleton pattern and the Gang-of- Four pattern are two rather popular design patterns.

Design patterns in software development are connected to two somewhat similar purposes.

Design patterns give developers a shared ground.
Design patterns guarantees the application of React best practices.
Allow us closer examination of these.

First role: provide developers a shared space.

Design patterns offer accepted language and answers to known issues. Using the Singleton design we discussed earlier, let us consider things.

The second role is making sure React best practices are followed.

Many years of research and testing have produced design patterns. They guarantee that the greatest standards are being followed in addition to letting developers become naturally comfortable in the development surroundings.

This reduces mistakes and saves time during debugging and problem solving that would have been readily avoided with the correct design pattern followed.

React, like any other decent programming tool, makes great use of design patterns to give developers a potent instrument. React philosophy allows developers to create some quite amazing applications by being correctly followed.

Knowing design patterns now will help you. Let us now turn now to some of React.js's most often utilized design patterns.

Class components vs functional ones

There are two kinds of components: functional and class ones. Separate blog post explains the variations between the two: What Should You Know Regarding Functional versus Class Components?

Class Tools

Built on JavaScript classes, Class Components expand React. Component class. They provide a strong framework for handling state and lifecycle events and are the conventional method used in React component creation. For complicated situations where exact control over state and lifetime behavior is crucial, class components especially help.

You provide a class in a class component that inherits React. Component. This class can include a render function to specify the UI of a component, lifecycle methods for managing several phases of a component's existence, and a constructor for starting state. When handling complex elements that demand careful control of internal state and lifecycle events, this methodical approach helps.

One React class component might look like this:

import React, { Component } from 'react';

class MyClassComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      count: 0,
    };

    // Binding 'this' context to the method
    this.incrementCount = this.incrementCount.bind(this);
  }

  incrementCount() {
    this.setState((prevState) => ({
      count: prevState.count + 1,
    }));
  }

  render() {
    return (
      <div>
        <h1>Count: {this.state.count}</h1>
        <button onClick={this.incrementCount}>Increment</button>
      </div>
    );
  }
}

export default MyClassComponent;

import React, { useState } from 'react';

const MyFunctionalComponent = () => {
  const [count, setCount] = useState(0);

  const incrementCount = () => {
    setCount(prevCount => prevCount + 1);
  };

  return (
    <div>
      <h1>Count: {count}</h1>
      <button onClick={incrementCount}>Increment</button>
    </div>
  );
};

export default MyFunctionalComponent;

import React, { useState, createContext, useContext } from 'react';

// Create a context to share state between compound components
const AccordionContext = createContext();

const Accordion = ({ children }) => {
  const [openIndex, setOpenIndex] = useState(null);

  const toggleIndex = (index) => {
    setOpenIndex(openIndex === index ? null : index);
  };

  return (
    <AccordionContext.Provider value={{ openIndex, toggleIndex }}>
      <div className="accordion">{children}</div>
    </AccordionContext.Provider>
  );
};

const AccordionItem = ({ children, index }) => {
  const { openIndex, toggleIndex } = useContext(AccordionContext);
  const isOpen = openIndex === index;

  return (
    <div className={`accordion-item ${isOpen ? 'open' : ''}`}>
      <div className="accordion-header" onClick={() => toggleIndex(index)}>
        {children[0]}
      </div>
      {isOpen && <div className="accordion-body">{children[1]}</div>}
    </div>
  );
};

// Usage
const App = () => {
  return (
    <Accordion>
      <AccordionItem index={0}>
        <div>Header 1</div>
        <div>Content 1</div>
      </AccordionItem>
      <AccordionItem index={1}>
        <div>Header 2</div>
        <div>Content 2</div>
      </AccordionItem>
      <AccordionItem index={2}>
        <div>Header 3</div>
        <div>Content 3</div>
      </AccordionItem>
    </Accordion>
  );
};

export default App;