Infinite scroll techniques In React – LogRocket

  • This determines when the scroll has reached the bottom of the div and then performs actions accordingly.In this tutorial, I will explain two methods of implementing infinite scroll in React:The first method describes implementing everything from the ground upThe second method uses an already available infinite scroll library/componentA basic understanding…
  • The items hold the number of items available to be shown as li tags while the loading state will show when the infinite loader is fetching more items.Next, create a function that renders all items:This function loops through the number of items present and create a li tag showing the…
  • Define the ComponentWillMount method:In the method above, a scroll listener was added to the myscroll ref which references the div being targeted.
  • In your application, you probably want to make a fetch or axios call to your server and then change state.But no matter your use case, the concept remains the same.Here is what the final component should look like:Using an infinite scroll libraryWhile the first method showed how relatively easy it is…
  • Instead, there is hasMoreItems which is used to tell the Infinite scroll component to detach the event listenerAn alteration to the loadMore function, which sets the hasMoreItems state to false once the items his 200ConclusionAnd there you have it, two different methods that allow you to implement infinite scroll in…

In this tutorial, Ogundipe explains two methods of implementing infinite scroll in React

Infinite scroll techniques in ReactIntroductionInfinite scrolling is a web design technique that loads content continuously as the user scrolls down the page, eliminating the need for pagination.Content is often loaded asynchronously by making a request to the server. Often times this can improve the user experience on a website.But not always. Sometimes it’s terrible.Infinite scrolling technically requires adding a scroll event listener to the window object or a certain div. This determines when the scroll has reached the bottom of the div and then performs actions accordingly.In this tutorial, I will explain two methods of implementing infinite scroll in React:The first method describes implementing everything from the ground upThe second method uses an already available infinite scroll library/componentA basic understanding of React is needed to follow through this tutorial.Implementing from the ground upAs mentioned earlier, infinite scroll is about attaching event listeners to DOM elements while watching for when the scrollbar hits the bottom of the div.Look at the render function of this Component below:Say you want to load more li items into the ul tag each time the div with the class App gets to the end of the div, how do you tackle this problem?First, notice that there is a reference to the div called myscroll which makes it possible to access the element in React using this.refs.myscroll.Declare an initial state in the constructor:Here, you declared two states: items and loading. The items hold the number of items available to be shown as li tags while the loading state will…

Infinite scroll techniques In React – LogRocket