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

Calling a Generalizable Function

<TITLE>Variable Scope Trials</TITLE>
function factorial(n) {
    if (n > 0) {
        return n * (factorial(n - 1));
    } else {
       return 1;
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">


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