Calling a Generalizable Function : Function « Language Basics « JavaScript DHTML

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JavaScript DHTML » Language Basics » Function

Calling a Generalizable Function


   

<HTML>

<HEAD>

<TITLE>Variable Scope Trials</TITLE>

<SCRIPT LANGUAGE="JavaScript">

function factorial(n) {

    if (n > 0) {

        return n * (factorial(n - 1));

    } else {

       return 1;

    }

}

</SCRIPT>

</HEAD>

<BODY>

<FORM>

Enter an input value: <INPUT TYPE="text" NAME="input" VALUE=0>

<P><INPUT TYPE="button" VALUE="Calc Factorial" 

    onClick="this.form.output.value = factorial(this.form.input.value)">

<P>Results: <INPUT TYPE="text" NAME="output">

</FORM>

</BODY>

</HTML>

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