Detecting NodeList Object Vs Array
Jan 23, 2007
I have a function were the input parameter can either be an
string,array,dom node or NodeList (getElementsByTagName()) and I have
somthing like this function which works great for what I want in every
case except if the pNd is the NodeList at which point I end up with the
nodeList in the first element of the array instead of acting like the
array would.
function doSomething(pNd){
if(pNd.constructor != Array){pNd = new Array(pNd)}
return pNd
}
So my question is how is there any easy way to figure out if pNd is a
NodeList ? When I use pNd.constructor on NodeList all I get is [object]
View 2 Replies
ADVERTISEMENT
Dec 16, 2010
I've been working on a function to convert nodeList and object properties to an array. The first question is with regards IE and checking whether the object provided is an HTML collection. The best I have come up with so far, is to test if it's an object, has an 'item' which is a function and has length. The second question is with regards slice.call and a while loop copy. I guess I need to do some profile/timing tests, but I'm wondering if the function merits a slice.call? or should I simplify?
Code JavaScript:
// Some weirdness in IE regarding nodesList and typeof 'item' returning 'Object'
// even though when alerted it returns 'function (){...}'.
// Therefore having to use regExp.test() to check whether it's a function instead.
// Note: _isNodeList isn't full proof. An object with the properties
[Code]..
View 2 Replies
View Related
Jun 1, 2009
Basically what i am trying to do is that i have a unordered list and basically destroys the new list and creates a new one. The problem is that each element of that list has a hover event method. After the new list is created, the hover event is not detected.
Here's the sample code:
View 1 Replies
View Related
Mar 10, 2007
I've often write javascripts that use this rather common code to get all tags in an XHTML document:
var alltags = document.getElementsByTagName('*')
... and then use a for loop to access the elements as an array, for example:
for (i=0;i<alltags.length;i++) {
elementClass=alltags.className
[i]Do stuff
}
This has always seemed to work in the past, but I recently learned that the getElementsByTagName method returns a DOM NodeList, not an array. I'm currenly working on a project that needs to access the children of an element conditionally upon its class.
I have three questions. First: How do I declare a global variable to be a DOM NodeList object? It wouldn't be assigned until called from a function, so something akin to var elementList = document.getElementsByTagName() in my global declarations is out of the question. Is there something like var elementList = new NodeList() in javascript? (I know that I can assign it in a function without the var and it will be global, but other people may have to work with this code, and I'd like to have it clearly declared at the head of the program.)
Second question: Assuming alltags is a NodeList returned from a getElementsByTagName call, which of these is proper? This:
childElements = alltags[i].getChildNodes()
... or this:
childElements = alltags.item(i).getChildNodes()
And finally, which of the above techniques has better browser support?
View 6 Replies
View Related
May 27, 2005
I'm developing sort of a do-all javascript required form field check (which was developed long after the pages were developed). It uses a lot of getElementsByTagName so it's creating several NodeLists. One of these nodelists contain all the divs, those showing (display:block) and those hidden (display:none). The function checks only the divs that are visible.
This is my first experience with NodeLists so the first thing I tried was removeNode() on the hidden divs. This doesn't work because when you return with required field errors and try to make the hidden fields appear I believe there are errors because the hidden divs were removed from the DOM.
I've tried a few other work-a-rounds but it's getting to be afternoon and I'm turning to you guys for help! Is it possible for me to just skip forward to the next Node in the NodeList? I've tried nextSibling but I guess I'm calling it on the wrong Node.
View 13 Replies
View Related
Dec 16, 2010
Anyway clever ways of checking whether an object is a nodelist in IE. There appears to only be two properties item and length.This is what I'm working on
Code:
// Some weirdness in IE regarding nodesList and typeof 'item' returning 'Object'
// even though when alerted it returns 'function (){...}'.
[code]....
View 5 Replies
View Related
Oct 5, 2011
I'm writing a program that involves a network of interconnected nodes (or simply objects in my example below). It depends on being able to access properties of an object's linked objects (a bit oddly worded, sorry)...Problem is I'm not sure how to properly access those properties... see below please.
<script>
//This is an example of a problem im having in my own code...
//I want to access the name of the object within the links array wintin the object...
[code]....
View 3 Replies
View Related
Jul 20, 2005
I am following an example of an array in
http://www.faqs.org/docs/htmltut/im...famsupp_59.html. Here
is a part of the code:
var rollOverArr=new Array();
function rollover(pageImageName)
{
if (! document.images) return;
if (! rollOverArr[pageImageName]) return;
if (! rollOverArr[pageImageName].outImg)
{
My questions are:
1 what does (! document.images) means?
2 where does .outImg come from?
View 1 Replies
View Related
Jul 23, 2005
Is it possible to have an Object as the key for an Associative array
like in the following example....
function Obj(var1, var2)
{
this.var1 = var1;
this.var1 = var1;
}
function test() {
var sectionArray = new Array();
var obj = new Obj("c","k");
var obj2 = new Obj("3","n");
var obj3 = new Obj("v","qk");
sectionArray[obj] = "king";
sectionArray[obj2] = "queen";
sectionArray[obj3] = "joker";
alert(sectionArray[obj]);
}
This does not give any error but the alert says "joker" instead of
"king". Is there anything wrong with my code or is an Object something
that just can not be used as a key.
If it is the latter can someone please suggest another way for me to do
it? Can I use a concatenated String instead of an object? My only
problem then is how would I extract the values from the String, does
JavaScript have a tokenizer method like Java?
View 11 Replies
View Related
Jul 20, 2005
Is it possible to have an Array object (or an object derived from
Array) that is 'aware' of other code modifying its contents? I'd like
to have such an "onModify" function process an array everytime the []
operator is used to make a change. I know you can derive from Array,
but you cannot directly override the [] operator. Any way to make
this possible?
// possible definition of 'SpecialArray'
...
function OnModify()
{
// process the list
}
...
//an example of use ...
View 1 Replies
View Related
Jan 5, 2010
How do I convert the this object to an array.
View 3 Replies
View Related
Jan 18, 2009
I have defined a class jARColumn with a property name.
I have created 3 objects of this jARColumn class as following:
Code:
I store those 3 column into my array as following:
Code:
Now i would like to display the name of my col2 for example:
Code:
It tells me that jARColumn(myArray[1]) is undefined
View 2 Replies
View Related
Oct 12, 2007
How do I explain this? I am grabbing several elements from my document and placing them in an array, using jQuery. When I test the
Code:
typeof
this item, it returns as an Object, not an Array, which is problematic for IE. Firefox seems not to have an issue with
Code:
Object.length
, but IE won't have any of that, so I need
Code:
Array.length
or do I? In the end, I just want IE to know how many keys are in the Array/Object...
View 6 Replies
View Related
Feb 27, 2010
What I'm trying to do, I think, is to use elements of an array as a part of an object. Here's a lil' code snippet:
Code:
I'm trying to insert each of the elements of the katMusik-array into the checked-line, thus checking the checkboxes with those names. However, it doesn't seem to work.
View 5 Replies
View Related
Jul 3, 2006
I have a array to store some student information, eg:
var s = new Array('2006001', 'Apple Joker', '5B');
normally, We get the data using s[0], s[1],s[2] ...
How can I define them more readable like
s['studentID'], s['studentName'], s['class']?
View 14 Replies
View Related
Oct 16, 2009
i'm an actionscript3 developer who is somewhat new to js/jquery and am struggling through creating a site using jquery.I would like to be able to use the show/hide/toggle methods to switch between content using a standard navigation list. basically, what I want to do is this:1. store list of 10 <divs> in array with the id set to w1_blog, w2_blog, etc2. list of 10 links with ids = w1_blog_a, w2_blog_a, etc.3. store references to divs and links in array/s4. add event listener to each link5. .click event calls function that loops through each blog entry and shows the one matching the link (w1, w2, etc) and hides all others.I could do this in 2 mins in as3 but I'm struggling with the js syntax, despite it being very close to as3. It should (I think) look something like this:
$(document).ready(function(){
var blogArr = new Array();
var blogLinkArr = new Array();
[code]....
View 1 Replies
View Related
Aug 11, 2009
I got an php page who picks up data out of my data base and puts it ina multidimensinal array. That array is being encoded to Json$event = json_encode($super_array);Then i made an javasript get funtion to get that array to my mainpage.
function get(){
$.get("../position of my file/test.php", function(data){
alert (""+data);
[code]....
View 10 Replies
View Related
Dec 3, 2009
What I'm trying to do here is even possible.
I've tried numerous variations of the alert line with evals, brackets and jQuery syntax but always seem to get the error:
XML filter is applied to non-XML value ({one:["1", "2", "3"], two:["a", "b", "c"]})
Which makes me think I'm either attempting something stupid or only missing my target slightly.
The code will be running within a jQuery project up if that helps in any way.
View 4 Replies
View Related
May 1, 2010
I have an array but I'm not exactly sure how to finish the build using an if statement. I have 6 elements and need the build to load a different top image for each array that loads that matches the specific element. Here is what I have but it only shows the first top image no matter what:
<LINK REL=StyleSheet HREF="scrolling_popup/scrolling_popup.css" TYPE="text/css">
<script type="text/javascript" language="javascript" src="scrolling_popup/scrolling_popup.js"></script>
<script type="text/javascript" >
var array = new Array();
array[0]='<a href="[URL]" target="_blank"><img src="[URL]" border="0" alt=""></a>';
array[1]='<a href="[URL]" target="_blank"><img src="[URL]" border="0" alt=""></a>'; .....
View 1 Replies
View Related
Jun 20, 2011
I have an array of objects that I would like to sort through and "join" objects that are the same. And if they are the same, I need to sum up the number value given for those two items. So I guess Im sorting through and maybe even recreating this array to get rid of duplicates while I tally quantities. see the screenshot of my array of objects to help understand better. The highlighted 'sPSPN' would indicate that it is a duplicate item and its 'fUnits' need to be totalled. in the end I would have a total of 3 objects, because 'sPSPN'= BT-221-44 would now be only one object with 'fUnits' = 35.
View 4 Replies
View Related
Dec 10, 2009
I have a String formated in such as the javascript format
May I know is it posible to directly convert to var array?
Example:
But it look not work for me...
How can I do that? ( without using split function example var data = respond.split(","); )
View 9 Replies
View Related
Mar 6, 2011
Am passing an array object back from ASP.NET but cannot work out how to access the child objects and get the value. Link is an image of the asp return object and what I am able view in javascript by console log of the data. Example image - [URL] been trying stuff like data.d.MessageText and a few others.
View 2 Replies
View Related
Jul 19, 2009
I would like to add a key value to an object array. let's say i have 2arrays: var parArr = new Array('par1', 'par2', 'par3', 'par4'); var valArr = new Array('val1', 'val2', 'val3', 'val4');I would like to obtain
ext={par1:val1, par2:val2,pa3:val3,par4:val4}
View 1 Replies
View Related
Oct 13, 2011
This is my jquery response:
[
{ "depot":
{ "id": "D1",
[code]....
View 5 Replies
View Related
Dec 24, 2011
I'm trying to send my array object through ajax using the jQuery .get method, but when it sends, ids show up as multiple parameters and I'm not sure if that's the way to do it.
Here is my code:
var val = [];
$(':checkbox:checked').each(function(i){
val[i] = $(this).attr('id').substring(6);
});
$.get("/assets/ajax/pm_change_status.php", { s: sess_id(), 'ids[]': val } );
View 6 Replies
View Related
Feb 14, 2011
I'm a little puzzled over the possibility of accessing an array. I've declared the previd id - in the proxy.invoke call which works just fine (we have already implemented an .each loop which also works. My problem is this - after accessing the proxy.invoke function, the previd is populated correctly with push but after the call, we cannot seem to access the previd array to make a join to a string. Here's the basics of the code.
var previd = [];
proxy.invoke("validdateIDCard", p_caregiverid,
function(validaterID) {
var valcard = validateID;
previd.push(valcard);
}, onPageError);
var finalvalue = previd.join("|"); <-- this is where the problem lies - cannot seem to read the variable...
View 1 Replies
View Related
