Recursive function in javascript

Question

Maybe is a trivial problem, i don't know why this function exit from for cycle when it goes on else statement. I need this function to fetch an xml document.

function xmlToArray(element){
    childs= element.childNodes;
    if(childs.length != 1){
      for(var i=0;i<childs.length;i++){
        if(childs[i].hasChildNodes()){
          xmlToArray(childs[i]);
        }
        alert("exit from if");
      }//end for
      alert("exit from for");
    }//end if
    else{
      alert("do something with element");
    }
    alert("end of func");
}

Do you mean it's dropping completely from the stack, every iteration of it, when it encounters the else, or just the level it's on? — Tarka
– Tarka, Commented Feb 26, 2010 at 17:30

Gumbo · Accepted Answer · 2010-02-26 17:33:54Z

8

Since childs is not a local variable, all calls of xmlToArray work on the same data.

Try this:

function xmlToArray(element) {
    var childs = element.childNodes;
    // …
}

Using var declares that variable in the current scope.

answered Feb 26, 2010 at 17:33

Gumbo

657k112 gold badges792 silver badges852 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Recursive function in javascript

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related