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How to create a load more button in React.

load more button in react

Here's a preview of what we'll be building.

Let's get into it.

Create a new react project using CRA

npx create-react-app loadmore

Get some sample posts.

  • Get them from here
  • Put these posts in a postsArray.js file and export them like below. posts exported from postsArray.js

Create a component to display posts

  • This component will accept a prop called postsToRender. We will pass this prop from our App component.
import React from "react";
const Posts = ({ postsToRender }) => {return (
      {, index) => (
        <li key={index}>
export default Posts;
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App.js. The main bit!

I'll quickly run through what we'll be doing before showing the code.
In App.js, import the posts from postsArray.js.

  • create a variable called postsPerPage for the number of additional posts to show each time the user clicks the load more button.
  • Declare a variable called arrayForHoldingPosts to hold the posts before we display them.
  • create a load more button and give it an onClick handler called handleShowMorePosts
  • create the handleShowMorePosts function that will run each time the load more button is clicked.

Now the code!

import React, { useState, useEffect } from "react";

import Posts from "./Posts";
import posts from "./postsArray";
const postsPerPage = 3;
let arrayForHoldingPosts = [];

const App = () => {
  const [postsToShow, setPostsToShow] = useState([]);
  const [next, setNext] = useState(3);

  const loopWithSlice = (start, end) => {
    const slicedPosts = posts.slice(start, end);
    arrayForHoldingPosts = [...arrayForHoldingPosts, ...slicedPosts];

  useEffect(() => {
    loopWithSlice(0, postsPerPage);
  }, []);

  const handleShowMorePosts = () => {
    loopWithSlice(next, next + postsPerPage);
    setNext(next + postsPerPage);

  return (
      <Posts postsToRender={postsToShow} />
      <button onClick={handleShowMorePosts}>Load more</button>

export default App;

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If you want to see the App.js code in a cleaner form, check out the github gist.

Top comments (4)

raulbarriga profile image

I used this article to give me better guidance on this npm gallery package called Pro Gallery from WIx in React. They have a playground to test its settings & then generate the boilerplate code for it. But I'm trying to use their load more button & I just can't seem to grasp my head around how to pass get it to show more images. Maybe you can check it out & give some suggestions on how to use it. Thanks.

evansitworld profile image
Evans Ansong

This is great! thanks Ade

tylerwashington888 profile image

I got this functionality to work but, when working in react, once I click away from the page with this function and comeback my data duplicates. How do i get it to refresh back to the original data?

tylerwashington888 profile image

to be clearer how do i get the state to refresh once I leave this screen and comback ?