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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JavaScript ES6 Function with Default Parameter Values</title> </head> <body> <script> function sayHello(name='World'){ return `Hello ${name}!`; } document.write(sayHello()); // Hello World! document.write("<br>"); document.write(sayHello('John')); // Hello John! </script> </body> </html>
