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Understanding higher-order components in React.js

Thamothara Kannan by Thamothara Kannan
1 month ago
in Others
Reading Time: 2 minutes
Understanding higher-order components in React.js
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Higher-order components (HOCs) are an advanced topic in React.js, often used by application development experts to streamline the code and make the development project more efficient. A HOC is a “function that takes a component and returns a new component”. It reuses component logic and follows one of the patterns.

When do you use HOCs?

Let’s say you have a box to which you want to add an outline color. A component would perform this activity. Now let’s say you have ten similar boxes, each needing an outline color. You could hand-write code for each box, or use a HOC to create a function that provides an outline color for each.

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Here’s an example of a function that creates a new component: a HOC

import React from ‘react’

const higherOrderComponent = WrappedComponent => {

  class HOC extends React.Component {

    render() {

      return <WrappedComponent />

    }

  }

  return HOC

}

In the above example, a higher-order component is written as a function. It takes a component, called ‘WrappedComponent’, as an argument. We have created a new component called ‘HOC’, which returns the <WrappedComponent/> from its render function.

 

A higher-order component (HOC) is a distinctive element for reusing logic in React components.

How do you use Higher-Order Components?

  1. HOCs don’t modify or mutate components; they create new ones
  2. The code can be reused as required
  3. No side effects arise from the use of HOCs in React.js development services

What are the benefits of using HOCs?

  1. When used properly and efficiently, HOCs are easy to handle
  2. HOCs help to streamline the code by avoiding mutating or comoving the same logic in each component created
  3. Using higher-order components makes code more readable and efficient
  4. Due to its proper naming conventions, debugging becomes easy

 

HOCs can make your code lighter, faster to develop, easier to read and more streamlined. Still wondering how to use HOCs when using React.js development services? Speak to our team of application development experts today.

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Thamothara Kannan

Thamothara Kannan

Thamotharakannan is a technology enthusiast and has been working in the tech field for over five years. He has hands-on experience in programming, deployment and requirement analysis. He loves discussing and learning about new cloud innovations and technologies, and his interest lies particularly in debugging.

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