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component unmount useeffect Code Example
useeffect umnount 
  useEffect(() => {
    return () => {
      console.log("cleaned up");
    };
  }, []);
useeffect will unmount 
  useEffect(() => {
    return () => {
      console.log("cleaning up --> unmount ");
    };
  }, []);
component unmount useeffect 
useEffect( () => console.log("mount"), [] );
useEffect( () => console.log("will update data1"), [ data1 ] );
useEffect( () => console.log("will update any") );
useEffect( () => () => console.log("will update data1 or unmount"), [ data1 ] );
useEffect( () => () => console.log("unmount"), [] );
Source: stackoverflow.com
useeffect with cleanup 
  useEffect(() => {
	//your code goes here
    return () => {
      //your cleanup code codes here
    };
  },[]);
react useEffect 
import React, { useEffect } from 'react';

export const App: React.FC = () => {
  
  useEffect(() => {
        
  }, [/*Here can enter some value to call again the content inside useEffect*/])
  
  return (
    <div>Use Effect!</div>
  );
}
how to useeffect for unmount 
useEffect( () => console.log("mount"), [] );
useEffect( () => console.log("will update data1"), [ data1 ] );
useEffect( () => console.log("will update any") );
useEffect( () => () => console.log("will update data1 or unmount"), [ data1 ] );
useEffect( () => () => console.log("unmount"), [] );



Javascript

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Type:
 Code Example
Category:
 Coding
Sub Category:
 Code Example
Uploaded by:
 Admin
Views:
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Horje