Array undefined problem

Hey guys

I got a problem with my program, it converts a name to initial

example: Jordy Derp ==> J.D. but i always get an undefined in front of it

http://i43.tinypic.com/2qu12jn.png

addEventListener("load", init, false);

function init() {


var naam = new initialen(prompt("geef een naam in"));
var tijdelijk = ""
var naamArray = new Array();
var perm = ""

function initialen(naam) {

if (naam.indexOf(' ') >= 0) {
naamArray = naam.split(" ")


for (var i = 0; i < naamArray.length; i++) {
perm += naamArray[i].charAt(0) + "."
}
alert(perm)

}
else {
alert("False")
}
}
}

btw it also checks for spaces so u need to type 2 names


Thanks in advance

Declare the perm variable before you invoke the initialen() function.

P.S. To be exact, the variable must be initialized before the function will be invoked.

Declare the perm variable before you invoke the initialen() function.

P.S. To be exact, the variable must be initialized before the function will be invoked.


var perm = "" is before the function?

Before the function invoking.

var perm = ""
var naam = new initialen(prompt("geef een naam in"));
var tijdelijk = ""
var naamArray = new Array();

Before the function invoking.

var perm = ""
var naam = new initialen(prompt("geef een naam in"));
var tijdelijk = ""
var naamArray = new Array();


Thanks it works now , stupid mistake ^^

<script type = "text/javascript">

var naam = prompt("Geef een naam in","");
naam = naam.replace(/[^a-z\s]/gi,""); // strip all but letters and spaces
naam = naam.replace(/^\s+|\s+$/g,""); // strip leading and trailing spaces
naam = naam.replace(/\s{2,}/g," "); // replace multiple spaces with one space

var perm = "";

if (naam.indexOf(' ') >= 0) {
var naamArray = naam.split(" ");

for (var i = 0; i < naamArray.length; i++) {
perm += naamArray[i].charAt(0) + "."
}
perm = perm.toUpperCase();
alert (perm);
}
else {alert("False")}

</script>


Customer in UK travel agent shop: - "What month is it now in Australia?"

It seems to me that there is no need in loops at all… =)
var re = /\s*(\w)\S*[\s$]*/g;
var str = " Irvim John Kenneth Loyd Martin Nero Oliver Paul Quincy ";
alert(str.replace(re, "$1.").toUpperCase());