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Fact <!DOCTYPE html> <html> <head> </head> <body> <center> <h1>Factorial program using DO while looping statement</h1></center> Enter a number: <input id = "num"> <br><br> <button onclick = "fact()"> Factorial </button> <p id = "res"></p> <script> function fact(){ var i=1, num, f; f = 1; num = document.getElementById("num").value; do { f = f * i; i=i+1; num=num-1; } while(num>0); i = i - 1; document.getElementById("res").innerHTML = "The factorial of the number " + i + " is: " + f ; } </script> </body> </html>
