Keep track of parent node

[rmlakshmanan]

In javascript a tree structure node i have a subnode and it has
parentnode and that parentnode has one parent how do i get all parent
node when i click the subnode

[impaler]

rm**********@gmail.com wrote:

In javascript a tree structure node i have a subnode and it has
parentnode and that parentnode has one parent how do i get all parent
node when i click the subnode

var arrayParents = new Array;
if (child.parent) {
var currentParent = child.parent;
arrayParents.push(currentParent);
while(currentParent.parent) {
currentParent = currentParent.parent;
arrayParents.push(currentParent);
}
}

and there you have the array of parents. Adapt this algorithm to your
tree and code

[rmlakshmanan]

Thanks a lot

[RobG]

impaler wrote:

rm**********@gmail.com wrote:

In javascript a tree structure node i have a subnode and it has
parentnode and that parentnode has one parent how do i get all parent
node when i click the subnode

var arrayParents = new Array;
if (child.parent) {
var currentParent = child.parent;
arrayParents.push(currentParent);
while(currentParent.parent) {
currentParent = currentParent.parent;
arrayParents.push(currentParent);
}
}

More concisely:

function getParentArray(el)
{
var parent, parentArray = [];
while((el = el.parentNode)){
parentArray.push(el);
}
return parentArray;
}


--
Rob

[RobG]

RobG wrote:
[...]

function getParentArray(el)
{
var parent, parentArray = [];
Aggh...

var parentArray = [];

while((el = el.parentNode)){
parentArray.push(el);
}
return parentArray;
}

--
Rob

[Thomas 'PointedEars' Lahn]

RobG wrote:

RobG wrote:
[...]

function getParentArray(el)
{
var parent, parentArray = [];

Aggh...

var parentArray = [];

That is equivalent :)
Regards,
PointedEars