<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <form> <select name="select_menu"> <option value="select-gender">- Select your gender -</option> <option value="male">Male</option> <option value="female">Female</option> </select> <button onclick="gender()">Print</button> </form> <script> function gender(){ var elements = document.getElementsByName("select_menu").value; if(elements == select-gender) { alert("Select your gender"); } if(elements == male) { document.write("You're male"); } if(elements == female){ document.write("You're female"); } } </script> </body> </html>
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