This content originally appeared on DEV Community and was authored by Kazutora Hattori
Introduction
Here's a quick summary of useParams.
What is useParams?
“A tool for easily extracting necessary information from URLs.”
For example, consider this URL:
/users/123
Here, the number “123” represents the “user ID”.
But writing code normally won't automatically capture this “123”.
That's where useParams comes in.
const { id } = useParams();
Just writing this lets you extract parts of the URL, like:
id = “123”
A more familiar example?
Product page /products/45 → Want to retrieve “Information for product number 45”
Article page /articles/99 → Want to display “Content for article ID 99”
User page /users/123 → Want to show “Profile for user 123”
For pages like these, where the displayed content changes based on the URL, useParams becomes essential.
Summary
useParams is a convenient mechanism that lets you use parts like :id or :name within a URL in your code.
This content originally appeared on DEV Community and was authored by Kazutora Hattori
Kazutora Hattori | Sciencx (2025-09-22T08:37:40+00:00) 【React Router】A Summary of useParams. Retrieved from https://www.scien.cx/2025/09/22/%e3%80%90react-router%e3%80%91a-summary-of-useparams/
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