CODEWITHSUNDEEP
javascript
NinjaCode
NinjaCode

Reputation: 79

Traversing up the DOM tree to display info about the parentNode

I feel this should be an easy problem, but alas I find myself stuck. What I'm trying to do is set up a way so that every time you click on a cell on a table(or anywhere), it displays the parentNode of each element, essentially traversing up the DOM tree. I figured I would need to use elem.parentNode, but I'm stuck on the traversing part. Any gurus out there that can help me out, it would be greatly appreciated.

Upvotes: 6

Views: 6512

Answers (2)

Radek
Radek

Reputation: 8376

var element; //your clicked element
while(element.parentNode) {
    //display, log or do what you want with element
    element = element.parentNode;
}

Upvotes: 11

Phrogz
Phrogz

Reputation: 303136

var tables = document.getElementsByTagName('table');
for (var i=0,len=tables.length;i<len;++i){
  tables[i].onclick = function(evt){
    if (!evt) evt = window.event;
    var element = evt.target || evt.srcElement;
    while (element){
      console.log(element);
      element = element.parentNode;
    }
  };
}

If you really want clicking on any element everywhere, then simply:

document.body.onclick = function(evt){
  if (!evt) evt = window.event;
  var element = evt.target || evt.srcElement;
  while (element){
    console.log(element);
    element = element.parentNode;
  }
};

Upvotes: 3

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