👀 Views: 38 💬 Answers: 1 📅 Created: 2025-08-22

react sorting filtering useEffect JavaScript

Could someone explain I just started working with I'm not sure how to approach I've looked through the documentation and I'm still confused about I'm working on a React application where I need to sort a list of products based on a user-defined price range... I have a component that allows users to input minimum and maximum price values, and I want to filter and sort the product list based on these values. However, I'm running into issues where the component doesn't re-render correctly when the user updates the input fields. Here's the code I have so far: ```javascript import React, { useState, useEffect } from 'react'; const ProductList = ({ products }) => { const [minPrice, setMinPrice] = useState(0); const [maxPrice, setMaxPrice] = useState(100); const [filteredProducts, setFilteredProducts] = useState(products); useEffect(() => { const filtered = products.filter(product => product.price >= minPrice && product.price <= maxPrice ); setFilteredProducts(filtered); }, [minPrice, maxPrice, products]); return ( <div> <input type='number' placeholder='Min Price' value={minPrice} onChange={e => setMinPrice(Number(e.target.value))} /> <input type='number' placeholder='Max Price' value={maxPrice} onChange={e => setMaxPrice(Number(e.target.value))} /> <ul> {filteredProducts.map(product => ( <li key={product.id}>{product.name}: ${product.price}</li> ))} </ul> </div> ); }; export default ProductList; ``` The `useEffect` hook should trigger a re-render whenever the `minPrice` or `maxPrice` changes, but it seems to not be updating the displayed product list correctly. I also noticed that if I input a non-numeric value in the price fields, it throws an error, even though I have `Number(e.target.value)` to convert the input. Sometimes it just shows an empty list, which is confusing. What am I missing? Is there a better way to handle user input and re-rendering in this scenario? Any help would be greatly appreciated! This is part of a larger CLI tool I'm building. Am I missing something obvious? Could someone point me to the right documentation? I'm working on a desktop app that needs to handle this. I'm working on a service that needs to handle this.