How To Add Wishlist In Next Js & React js

How To Add Wishlist In Next Js React js
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Integrating a wishlist into your Next.js and React.js application enhances user experience by allowing them to save items for future reference. This feature is particularly useful in e-commerce sites, where it can significantly impact user engagement and sales.

In this post, we’ll walk you through the steps to add a Wishlist in React.js, ensuring you have a functional and user-friendly feature by the end.

Introduction

A wishlist allows users to mark items they are interested in but are not ready to purchase. This functionality not only improves the shopping experience but also provides valuable insights into customer preferences.

Implementing a Wishlist in React.js and Next.js requires a blend of frontend and backend skills, but we’ll focus on the frontend aspect, using state management and context API to store our Wishlist data.

Install Library in React.js

First, ensure your project setup is ready. If you’re working with Next.js, your React.js environment is inherently set. We’ll use a state management library, such as Redux or Context API, for handling our Wishlist state. For this guide, we’ll stick with Context API for simplicity.

- npm i react

This command installs the necessary library to manage global state, like a Wishlist, across your React components.

Create addToWishList Function

The addToWishList function allows users to add items to their wishlist. It should update the global state managed by Context API.

// add To WishList was use add product in WishList
const addToWishList = (data) => {
   // Load wishlist from localStorage
   const storedWishList = localStorage.getItem("wishList");
   const initialWishList = storedWishList ? JSON.parse(storedWishList) : [];


   // Check if the data is already in the wishlist
   if (!initialWishList.find((item) => item.id === data.id)) {
       const updatedWishList = [...initialWishList, data];


       // Update localStorage with the updated wishlist
       localStorage.setItem("wishList", JSON.stringify(updatedWishList));
   }
}


export default addToWishList;

This function takes an item and adds it to the existing wishlist array. Ensure you’ve set up your Context API provider to manage the wishlist state across your application.

Add addToWishList Function in Add WishList Button

Integrate the addToWishList function into your UI, typically by adding it to an “Add to Wishlist” button’s onClick event.

<button onClick={() => addToWishList(item)}>Add to Wishlist</button>

Replace item with the item data you wish to add to the wishlist.

List to Wishlist

Display the wishlist items by mapping over your wishlist state, showing each item in a list or grid.

{wishlist.map((item) => (
  <div key={item.id}>{item.name}</div>
))}

This renders each wishlist item’s name, but you can expand this to include images, descriptions, and remove buttons.

RemoveItem Function Use for Remove One Item from WishList

To remove an item from the wishlist, create a removeItem function that filters out the selected item from your wishlist state.

const removeItem = (itemId) => {
  setWishlist((prevItems) => prevItems.filter(item => item.id !== itemId));
};

Attach this function to a “Remove” button within your wishlist item component.

ClearWishList Function Use for Remove All Items from WishList

Implement a function to clear the entire wishlist:

const clearWishList = () => {
  setWishlist([]);
};

This can be linked to a “Clear Wishlist” button, offering users an easy way to start over.

Show Count of Product in Wishlist in Header Wishlist Icon

Enhance the user interface by displaying the number of items in the wishlist, typically near a wishlist icon in your site’s header.

<div>
  Wishlist (<span>{wishlist.length}</span>)
</div>

This simple implementation helps users keep track of their wishlist items at a glance.

Conclusion

Implementing a wishlist feature in your Next.js and React.js application involves setting up a global state for the wishlist, creating functions to add and remove items, and updating the UI to interact with these functions.

By following the steps outlined in this guide, you’ll enhance your application’s functionality and user experience, making it easier for users to save and manage their favorite items. Remember, a well-implemented wishlist can significantly contribute to the usability and appeal of your e-commerce site or application.

By mastering these techniques, you’re not just adding a new feature to your application; you’re also deepening your understanding of state management in React.js and improving your ability to create dynamic and interactive web applications.

Also read: How To Apply Head Meta Tag & SEO Tag In Next.js

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