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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JavaScript Local Variable</title> </head> <body> <script> // Defining function function greetWorld() { var greet = "Hello World!"; document.write(greet); } greetWorld(); // Prints: Hello World! document.write(greet); // Uncaught ReferenceError: greet is not defined </script> </body> </html>
