Use the onstorage attribute in HTML to execute on Web Storage area update. You can try to run the following code to implement onstorage attribute −
Example
<!doctype html> <html> <head><title>HTML onstorage</title> </head> <body> <h2>Welcome</h2> <body onstorage = "javascript:alert('Your learning journey!');"> Demo text</body> </body> </html>