componentDidMount Equivalent
- When you want to perform some actions immediately after the component mounts, you can use
useEffect
with an empty dependency array ([]
). This ensures that the effect runs only once after the initial render, mimicking the behavior ofcomponentDidMount
.
useEffect(() => {
// Perform actions here that you want to execute after the component mounts
}, []); /*Empty dependency array means this effect
runs only once, after the initial render */
- Use
useEffect
with an empty dependency array ([]
). - The effect will run after the initial render, similar to
componentDidMount
.
How useEffect replaces componentDidMount and componentDidUpdate methods?
In React, the useEffect
hook can be used to replicate the behavior of both componentDidMount
and componentDidUpdate
lifecycle methods.
Here’s how you can achieve that: