All Nodes Values NULL After Parsing
Apr 26, 2010
So there is this string i need to parse as xml:
<station><code>GB0923A</code><city>ABERDEEN</city><population>215.000</population><component><name>Nitrogen dioxide (air)</name><unit>_micro;g/m3</unit></component><component><name>Nitrogen oxides (air)</name><unit>_micro;g NO2/m3</unit></component></station>
Now what I do is: -use this function to create xml doc from string
[Code]...
the stirng shown at the beggining is passed to "response" (var response= xmlhttp.responseText;). Now for some reason all 3 values displayed are null... I am trying to figure why for last 2hrs but i cnt see any reason why they shouldnt be the actual values of nodes in the string...
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Jul 31, 2004
I'm trying to figure out how I can take user input from a textarea and insert it into a table as HTML. An example:
<script type="text/javascript">
<!--
function echo_input() {
var input = document.getElementById("user_input").value;
var cell = document.getElementById("display_area");
cell.childNodes[0].nodeValue = input;
}
//-->
</script>
<form>
<textarea id="user_input" name="user_input" onkeyup="echo_input();"></textarea>
</form>
<table>
<tr>
<td id="display_area">test</td>
</tr>
</table>
The childNodes[0] that the script keeps editing is the text node that starts out as "test". The problem is that I want the text that I put in the table to be parsed if any markup is in it (so that a <br /> will become a break, and not literally printed out as "<br />"), something that the DOM automatically escapes. It seems a very cumbersome means of doing this is to write a javascript parser, which would go through the text and create different types of nodes as it stumbles upon markup.
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Dec 15, 2010
I'm currently working on a pretty straight-forward AJAX application. In this application, I get some XML, and then parse it. An example of what I'm working with is as such:
<?xml version="1.0"?>
<postRoot xml:lang="EN">
<post type="comment" date="January 1, 1970">
<user>athlon32</user>
<content>Hello World</content>
</post>
</postRoot>
Now, I've been able to read the XML with XMLHttpRequest , my trouble is with parsing the results. I've tried tons of things, but I just can't seem to get the different child nodes. Now, let's say we have something like this:
var xml = xhr.responseXML;
var allPosts = xml.getElementsByTagName('post');
Could I use childNode to access user & content? And if so, how? I've tried many things, but nothing is working :/ Is there a better way to parse the results I get back from the server?
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Aug 2, 2010
This seems like a noob error, but I really googled it out, with not much results. Got stuck on just grabbing the XML. I validated the code with the w3.org validator and it's only missing a doctype. I've checked that the file is saved with no bom. It's served from my local Apache installation.
The error I get is:
With Firebug I got:
The jQuery code:
The headers look ok to me.Response Headers
I simplified the XML and just put it in a file, but the same error comes up even when the XML is generated with PHP. I did try to change the MIME type in the request and the response, but it's all the same.
Also, if I serve a file I get a 206, and a 200 response code for the same XML generated through PHP (using header("Content-type: text/xml")).
It should not be a cross-domain issue, as it's loaded and served from my localhost?
I did implement my script first for IE8 (sidebar gadget) without jQuery and works nicely with my PHP generated XML. Then I decided to pick up jQuery and hit the first wall head on.
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Feb 12, 2009
I'm currently working on a web page that's acting much like a spreadsheet. There are fields that the user must fill in and then certain columns of fields add up to a sum at the bottom. I haven't been able to get it working quite right.
Here is the essence of the code
Code:
<form name="drillreport" method="post" action="process_report.php">
<table><tr>
<td> Field 1 </td>
<td> <input type="text" name="field1" id="field1" onBlur= calcTotal() /> </td>
</tr><tr><td> Field 2 </td>
<td> <input type="text" name="field2" id="field2" onBlur= calcTotal() /> </td>
</tr><tr><td> Field 3 </td>
<td> <input type="text" name="field3" id="field3" onBlur= calcTotal() /> </td>
</tr><tr><td> Total </td>
<td> <input type="text" name="tot_col" id="tot_col" onFocus= calcTotal() /> </td>
</tr></table>
...
It is more than that of course, but you get the idea.
The function I wrote is the following:
Code:
<script type="text/javascript">
function calcTotal() {
var returned_val=0;
returned_val += parseFloat(document.drillreport.field1.value);
returned_val += parseFloat(document.drillreport.field2.value);
returned_val += parseFloat(document.drillreport.field3.value);
document.drillreport.tot_col.value = returned_val;
}
</script>
I use the onBlur for each of the "component fields" so that if the user changes one of the fields, it updates the total. However, I can't get this to return values properly when just field1 is entered ( NaN ) comes up. As soon as I enter the second column the total appears fine. Why wont this work if you just enter the first field?
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Dec 15, 2010
I am really stuck in parsing a JSON string and take it's values. I got the json string as
[Code]....
How to Parse this and take the Results for further processing in javascript.... I am waiting to hear from you Soon..I am using jQuery for the purpose...
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Apr 16, 2011
We are using a CRM system which accepts emails submitted from a website. I am not a javascript programmer.
I need to be able to extract certain information from the email body using javascript.
I have the contents in variable email.body and I need a function that extracts the Company, First name, Last Name,E-mail and Address.
Below are the contents of email.body:
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Jan 5, 2007
I have a form that I am using to generate an email with several user
selected fields being part of it. As part of this form, I have a select
box which allows the user to select which email addresses it should be
sent to. The box works great except that the CGI script I'm sending the
values to can only parse a single line for each field in the form. The
issue comes into play when someone selects more than one value in the
select box, the output of the select box seems to separate each value
on a separate line using a line feed (or carriage return, I can't
tell). The format that the CGI script needs is for a single line with
each of these values separated by a comma. I'm confident that a
javascript can do this fairly easily, but unfortunately, I am not very
well versed in javascript. I've found a few code snippets on the web
that I've mangled together, but since I don't really know what I'm
doing, it isn't working out so good. I've included what I have in the
form right now below (note that I've removed all of the other form data
but the select box code to save space). Code:
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Aug 21, 2009
Whenever i try to use this function it gives me either -NaN, or undefinedwhat am i doing wrong? The objective of these functions are to change x and y coordinates into SAN (Simplified Algebraic Notation) for use in the Chess Game's DataFile (PGN file format).Live Running DHTML App:http://daomingjin.googlepages.com/ChessManager.html140kb Zip-Archive:http://daomingjin.googlepages.com/ScoreMatev1.ziphere are the functions in Question:
function XCoordToSAN(x)
{
// Convert the x coordinate of the piece to partial SAN (Simplified Algebraic Notation)
[code]....
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Aug 10, 2011
I have scoured the internet looking for the right code but to no avail. I have gotten as far as totaling up my form but now want to format the amounts and total as currency and also want to strip out the values that =0. I have tried to use the code from other solutions (posted on the net) but I just think it is over my head because I cant figure it out. I thought I was close a few times but wasn't able to bring it on home. One of my issues is using somebody's code and not knowing where in my code to place it. [URL]
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Apr 6, 2010
What's the best way to wrap all the nodes between two nodes in DIV tags? Is it possible with the DOM? I have code similar to the following:
HTML Code:
<h3>First header</h3>
<p>First paragraph</p>
<p>Second paragraph</p>
[code].....
How can I achieve this with the DOM, without resorting to doing something like a string replace?
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Aug 6, 2010
Consider following html code
<p id="oliver">
<a id="oliver1" href="/oliver1/">Oliver Twist 1</a>
<a id="oliver2" href="/oliver2/">Oliver Twist 2</a>
<a id="oliver3" href="/oliver3/">Oliver Twist 3</a>
<a id="oliver4" href="/oliver4/">Oliver Twist 4</a>
</p>
Applying JavaScript to above html as following:
[Code]...
Why are anchor nodes pointing to href and text nodes pointing to [object]? As anchor and text both are objects therefore all outputs from indices 0 to 7 should be [object].
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Jul 30, 2011
I did find the javascript twice in my code, once in the header and once here, so i removed it from the header. I also changed to src to the full url. But i am still getting this and i dont know why. the file is located in the root directory. found a solution. basically Internet Explorer is crappy and doesnt like the setAttribute property so had to change the onchange handler by directly changing the attrbute for the object like so.object.onchange = function() {}i have no idea what they means, does that mean i need to change swfobject.js or does that mean i have to change my xml request. and if it is the swfobject i have no clue what they mean or what lines
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Feb 3, 2010
I've been trying for hours and I can't figure out why IE6 is throwing an derror on the following line of code.
Code:
var parts = rgbString.match(/^rgb((d+),s*(d+),s*(d+))$/); This is the function:
Code:
function rgbToHex(rgbString)
{
var parts = rgbString.match(/^rgb((d+),s*(d+),s*(d+))$/);[code]....
And this is the error:'null' is null or not an object
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Feb 26, 2009
I put a long script but the problem is small.
var book1 = bobj1.value;
var chapter1 = cobj1.value;
var verse1 = vobj1.value;
var book2 = bobj2.value;
var chapter2 = cobj2.value;
var verse2 = vobj2.value;
[Code].....
I don't know if this is written properly: if(bcv[a]!= ""){ The reason this is happening is because the error shows: Error: cobj1 is null Source File: [URL]
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Jun 20, 2010
My code is in the attachment alex.txt.When i press the button for first time it gives me error: 'null' is null or not an object. But when i press it again or refresh the page and press the button it gives me the result that i expect.When i change the var pdbfile1,2,3 values(for example with 2x4n;3gis;1crn) and press the button again there is the error again and i have to refresh the page again.
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Oct 22, 2010
I need to get the ID of all the nodes withing a DIV.
How do I do that?
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Jan 20, 2010
We are trying to use some javascript for a slideshow and are getting the following error message in our browser.
Unfortunately, we only have basic CSS and HTML knowledge. I was hoping the error might be an easy fix for someone on this forum.
The code is as follows:
What changes need to be made to this code?
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Oct 5, 2010
I'm not to familiar with js but I'm having a problem with, mootools.js in IE 8 "null" is not a null or not an object line 8, 13, 59
Parts of my site are not showing up and this just started happening.
[url]
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Sep 1, 2005
is there a possibility to move a node from one child position to
another ?
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Nov 1, 2007
I'm trying to iterate through nodes in a Selection Range, but I'm having a bit of trouble determining why all nodes in the range aren't being hit. It seems like deeply nested nodes aren't being hit for some reason.
Here's the code I'm using.
var n = startNode;
while (n) {
this.visited.push('[' + n.nodeName + ']');
if (n == endNode) {
break;
}
if (n != startNode && n.hasChildNodes()) {
n = n.firstChild;
} else {
while (!n.nextSibling) {
n = n.parentNode;
}
n = n.nextSibling;
}
}
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Feb 17, 2011
I have two nodes with elements get by tag name.Now i want these two nodes merged in one node.ie:
list1 = document.getElementById("menu1").getElementsByTagName("a");
list2 = document.getElementById("menu2").getElementsByTagName("a");
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Jul 23, 2005
There doesn't seem to be any mechanism to "clear" a node of all
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children before appending other nodes). I've come up with two
possibilities: Code:
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Jul 23, 2005
I try to associate DOM nodes with other objects. Assigning custom
properties to DOM nodes works in Firefox and Safari. It also works with
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are part of trees returned by XMLHttpRequest. How can I work around this
limitation? For XML nodes, I need to be able to associate at most one
object with each node.
The syntax I am using is
node.customproperty = value
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Feb 8, 2007
I must be missing something very obvious, but my nightly head doesn't work anymore.
Press "Insert" button to add <insnodes after each <br>. Now press "Delete" - only even <insare being removed. ins.length is reported properly, each <inshas "insert" class name. What a...?
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Mar 15, 2010
I'm sure I'm missing something basic, but I can't seem to find what I'm looking for. If I have an xml doc where the parent node and child nodes contain elements with the same name ("name" in this case), how would I go about just getting the client's name? Here is a slimmed down version of the structure:
<client>
<name></name>
<url></url>
[code]....
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