Using Higher Order Components in a React Application

  • If you have started using ReactJS recently often you might have felt that you are performing repeated logic in many components.
  • Well Higher Order Component (HOC) provides solution to such a kind of problems.
  • A function (Functional component in React) which takes a component and gives back another component.
  • So the exact benefits are:

    Functional components started from React V15.

  • But apart from that if we are careful enough we can have an architecture which can abstract logic that can be shared across other presentational components using HOC has great benefits.

If you have started using ReactJS recently often you might have felt that you are performing repeated logic in many components. For example consider an app having:
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Lazy Loading

  • Component { render ( ) { const { Highlight } = this .
  • A component can lazily load dependencies without its consumer knowing using higher order functions, or a consumer can lazily load its children without its children knowing using a component that takes a function and collection of modules, or some combination of both.
  • Component { render ( ) { return ( < div > { this .
  • As a component, you can also make sure your own dependencies are lazily loaded.
  • Source code of the LazilyLoad component module which exports both the Component interface and the higher order component interface, as well as the importLazy function to make ES2015 defaults feel a bit more natural.

A component can lazily load dependencies without its consumer knowing using higher order functions, or a consumer can lazily load its children without its children knowing using a component that takes a function and collection of modules, or some combination of both.
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Higher Order Components: A React Application Design Pattern

Higher order components: A #ReactJS app design pattern

  • Because higher order components often wrap an existing component you’ll often find you can define them as a functional component.
  • You need some of your React components to be able to access this information, but rather than blindly making it accessible for every component you want to be more strict about which components receive the information.
  • A higher order function is a function that when called, returns another function.
  • We’ll discuss how pure functions keep code clean and how these same principles can be applied to React components.
  • In the React ecosystem these components are known as higher order components because they take an existing component and manipulate it slightly without changing the existing component .

Read the full article, click here.


@ReactiveConf: “Higher order components: A #ReactJS app design pattern”


Jack Franklin takes a look at Higher Order Components, a design pattern that helps keep your React applications tidy, well structured and easy to maintain.


Higher Order Components: A React Application Design Pattern

Higher Order Components: A React Application Design Pattern

Higher order components: A #ReactJS app design pattern

  • Because higher order components often wrap an existing component you’ll often find you can define them as a functional component.
  • You need some of your React components to be able to access this information, but rather than blindly making it accessible for every component you want to be more strict about which components receive the information.
  • We’ll discuss how pure functions keep code clean and how these same principles can be applied to React components.
  • In the React ecosystem these components are known as higher order components because they take an existing component and manipulate it slightly without changing the existing component .
  • A higher order function is a function that when called, returns another function.

Read the full article, click here.


@ReactiveConf: “Higher order components: A #ReactJS app design pattern”


Jack Franklin takes a look at Higher Order Components, a design pattern that helps keep your React applications tidy, well structured and easy to maintain.


Higher Order Components: A React Application Design Pattern

Redux, Immutability, and Higher Order Components

Redux, immutability, and higher order components:  #ReactJS

  • A higher order component is exactly what it sounds like — it is the React component equivalent of a higher order function.
  • In React, a higher order component is a function that accepts a component and returns an enhanced component with superhero abilities.
  • A simple example of a higher order function in Haskell that takes a function and applies it twice to something.
  • , connect() is, through mapDispatchToProps() , subscribing the TodoList component to a change handler that will toggle a todo when the todo is clicked.
  • Well, arguably, one of the key concepts when using Redux with React lies in a higher order component: connect() .

Read the full article, click here.


@ReactiveConf: “Redux, immutability, and higher order components: #ReactJS”


As I wrote in a previous blog post, immutability is an important concept that can bring many benefits to development. In fact, it’s been embraced by javascript land, most notably by the ultra-popular framework, Redux.


Redux, Immutability, and Higher Order Components