score:1
react hook can be used only functional component whereas componentdidmount
is the life cycle method for class based component.
score:2
you can use hooks such as usestate
only inside functional component whereas setstate
in the lifecycles in class components. you don't wanna mix two. a typical usage would go something like this:
import react, { usestate } from 'react';
function example() {
const [myval, setmyval] = usestate('hello world');
return (
<div>
<p>{myval}</p>
</div>
);
}
if you want to go with lifecycle methods (such as componentdidmount
), you may consider using sestate. also, you can't use setstate
inside render
method as it would trigger an infinite call.
Source: stackoverflow.com
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