Dynamic Function Creation Fails?

May 7, 2011

I have a small number of functions on an object and for every function I wish to make a different function that calls the original where the this can be passed as a parameter. I am making a library and this is a convenience method for people who don't know about call/apply.

Currently (one of) my function looks like this:

function _find(){
return find.apply(arguments[0],Array.prototype.slice.call(arguments,1));
}

However since my functions are in a object I was wondering if I could make a new array dynamically?

var func = {'find':find}, func_new={}; //this is just an example I don't have this part in my code
for(var attr in func)
func_new[attr] = Function('return '+attr+'.apply(arguments[0],Array.prototype.slice.call(arguments,1));');

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GetElementById Fails With DOM Creation In FF?

Jun 30, 2009

I'm working on a script for Hulu that will present the user with some options, then automatically sort their queue depending on those options (a blessing for someone like me with 450+ entries). The sequence is as such:Read and store all entry rowsPresent user with a form to assign shows to categoriesPresent user with a form to assign weights to categories (so something can show up more or less often in a "block") as well as options for how to sort entriesSort previous row listings based on user inputDecide the order of shows and change the values of their respective "Order" boxesI've gotten it to work up until this last part. I'm creating the dialogue boxes using proper DOM input (at least, I believe so), but for some reason I can't use getElementById() or getElementsByName(). I can use getElementsByClassName() and getElementsByTagName(). When trying to use the first two, I'm just told that it isn't a function.

Here's the code section itself, the problem line is Line 3:

Javascript Code:

This is inside an onclick event; finalBox is declared outside of that handler. I'm able to use finalBox.getElementsByClassName in the same function about 20 lines up. For reference, here's where I create the elements I'm trying to find:

Javascript Code:

CustRow is a function that helps me shorten the code of adding a cell to a row (with addCell()); it creates a row element and attaches it to the given table element.

That first piece of code is the only place where I use getElementById. My main thought is that I'm doing the ID wrong and, for some reason, it's not registering with the DOM (though that doesn't explain why getElementById() still fails instead of returning null/undefined). Also, while I hope to eventually make this a FireFox add-on, I'm executing all of this through the FireBug console, so I don't know if that would affect it or not.

Any insights? I can change it to use getElementsByClassName (and it appears to work), but this is really frustrating me and I'd prefer not to use a messy work-around. (Actually, getElementsByName would be best, but I thought that getElementById would at least work.)

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How do you create dynamic element such as ifram, div, table , etc.... With the X library

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I'm building a DIV dynamically and putting a P into it like so:

var oDiv = document.createElement("DIV");
var oP = document.createElement("P");
oP.style.backgroundColor = "green";
oP.appendChild( document.createTextNode("some sample text") );
oDiv.appendChild(oP);

oDiv.style.position = "absolute";
oDiv.style.left = "100px";
oDiv.style.top = "100px";
oDiv.style.width = "200px";
oDiv.style.height = "150px";
oDiv.style.backgroundColor = "blue";

document.body.appendChild(oDiv);


The problem is that FF doesn't put the P in the top left corner of the
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Jun 2, 2006

can anybody tell me how you can create a new stylesheet inside a
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var CSSStyle = "rect {fill: lightgrey;}
circle {fill: red;}
polyline {fill: none; stroke: red; stroke-width: 0.3;}
text {font-size: 2.5px;}
text.text-x-axis {text-anchor: middle;}
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So far, the only workaround I found, was to link an empty stylesheet to
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and then use the insertRule method on this stylesheet for every single
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Oct 22, 2007

I have reason to want to be able to change a Firefox stylesheet rule dynamically. I have found, doing google searches, sites which tell you how to create stylesheets dynamically or just add and delete rules, but none of these pages procedures have worked in my Firefox. Some have worked in Internet Explorer. Most have claimed to be cross browser. An example of one which I had high hopes would work can be found at this link.. The code they give you near the bottom of that page is posted below with the original background color changed to red and some text to see the background color put in the body of the page. In other words I pretty much just pasted the code found their in the head portion of my HTML page.

Attempting to troubleshoot why this code is not working if I use the old alert message method and put an alert message between the lines "var mysheet=document.styleSheets[0]" and the line "var totalrules=mysheet.cssRules? mysheet.cssRules.length : mysheet.rules.length" the mysheet variable region out as being "object CSSStyleSheet", however if I use the newer step through method with firebug it reads undefined. So I am totally baffled. Code:

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Mar 11, 2010

I created the checkbox using this code:-

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Mar 7, 2011

I'm creating some links with PHP and here is the code for that:

Code:
<br><a id="add_to_cart" href="add_to_cart.php?pic_id=<?php echo $resultsetnewpic['pic_id']; ?>" class="under_pic_cart">Add to Shopping Cart</a>

There is a while loop to keep adding them but wanted to keep it simple. So right now there are three links that get created. I'm trying to find out the value of these links so I can add things to a shopping cart for the user. I have the following jquery to do this:

Code:
$(function() {
$(".under_pic_cart").click(function(){
alert("it gets here");

[Code]....

This part works fine. However how can I get the href value of this and then once I have it basically split it after the = sign to get the value I'm really looking for?

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Jan 10, 2012

I just wonder if there is a jquery plugin or something that enable me to create a html pagelayout with drag n drop.

Lets say i have a blank page with a div container, then i have a couple of layout elements that i can drag into that container, like 2 coulmn, 1 column, 3 column.

I hope you understund what i mean. something like sitefinitys template builder but in a light version.[URL]

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Aug 4, 2009

Am developing MonthlyExpenses Project in which we have to enter details according to that date.

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Jul 23, 2005

I have a task to create tables dynamically, using the javascript DOM.
The current method uses a 1px x 1px IFRAME to loop through some data
generation stuff, and then call JS functions in the parent window to
generate the tables.

The basic idea is to add a table tag, with a thead and tbody, on the
main parent page, that has display:none set. This then becomes
display:block when there are rows to show. The rows themselves are
added directly to the visible tbody element using appendChild(). When
the results need to be refreshed, the tbody elements are removed, and
then added again.

This works well in most browsers, including Opera. However, Mac IE
always freezes when trying to generate the table, even for the first
time.

I have several different versions, and they all generate the same
issue. The tables I am creating are quite complex: multiple cells,
colspans, images, nested tables, roll over colours, styles etc. At
first, I believed it was an issue with creating images dynamically,
however it now seems that is not the case.

I have also tried creating the table and tbody tags using the DOM and
appending them to a div, but with no luck. I have also tried creating
the tables using a hidden object and then copying the innerHTML / nodes
across to the visible one. The various versions I have cover most
bases:

* using innerHTML to add content to the cells
* using the javascript DOM to create all elements and append them
* using a mixture of the both

If anybody has any feedback or suggestions then it would be really
appreciated, particularly related to the following:

* From your experience, is this realistically possible?

* Is the problem I'm experiencing related to the complexity or size
of the table I am trying to generate? If the table is simple text only,
with 2 or 3 columns and rows, then it does work.

* What is the best method to dynamically create tables and cell
content across browsers, and in Mac IE?

* Is the problem image related? Does anyone have experience of
creating images dynamically in tables in Mac IE? Do you use "new
image()" or createElement()? (using the small table sample, this was
possible using both methods, and also innerHTML on a cell).

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Jul 20, 2010

I'm dynamically creating a table. I create the <tr>s with five <td>s. I then remove the third <td> and would like to add the cell variable where I removed the td. The creation of the table works, the removal of the td works, now how do I add the cell var where I removed the td? Example here: [URL]

Code JavaScript:
function CreateTable() {
var array = ["one", "two", "three", "four", "five", "six", "seven", "eight", "one", "one", "three", "seven"];
var listItems = "";
var tbody = $('.tbody');
var cell = $('<td>', {
className: 'open',
html: 'Open'
});
$.each(array, function(index, val) {
var row = jQuery('<tr></tr>')
.append('<td>' + index + ' - ' + val + '</td><td> open </td><td> open </td><td> open </td><td> open </td>');
$('td:eq(2)', row).css('background-color', '#eee');
$('td:eq(2)', row).remove();
row = row.add(cell);
row.appendTo(tbody);
});
}

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Apr 8, 2010

I have a form that allows for dynamic field creation. Basically, you click the + button, and an addition row of fields (2 text fields) are created. The area that is dynamically created is wrapped by a <div id>, within which is, and this might be bad practice so please feel free to mock me , another few nested div id's. It looks something like this:

Code:

Each time you hit the +, it creates a new div id beneath the "Adds" id.

What I'd like to do is see the values of the id's "row_fqdn" and "row_ip". Is there a quick way to access the values of nested id's?

I found a workaround but it seems pretty messy and drawn out, something like this:

Code:

I'm looking for a way to do something like this:

Code:

But that doesn't work.

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Dec 6, 2010

A while back, I an working on dynamic form creation. I wanted a user to be able to enter into a text field how many designs he or she would like, then, based on that number, be provided with a pair of text boxes that asked 1) name of design 2) quantity of that particular design. I received this cool way of doing it by user thraddash:

<head>
<script type="text/javascript">
function BuildFormFields($amount){
var
$container = document.getElementById('FormFields'),
$item, $field, $i;

$container.innerHTML = '';
for ($i = 0; $i < $amount; $i++) {
$item = document.createElement('div');
$item.style.margin = '3px';

$field = document.createElement('span');
$field.innerHTML = 'Name of Design';
$field.style.marginRight = '10px';
$item.appendChild($field); .....

As a followup, I wonder how to control in a table where each of these text boxes will appear.

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Jul 20, 2005

I am using ASP to dynamically generate a series of forms. When the
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function addRowToTable()
{
var tbl = document.getElementById('tblSample');

[code]....

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On my site I'm using an external (big) javascript file, in this external file there is a function with the following line in it:

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<script language ="Javascript" src="upload/3weg_slider.js">
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Aug 16, 2011

Two calls, one from a form and one from the html body reach the same 'window.open' function but only the former works.

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PHP Code:

#!/usr/bin/perl  -w
use CGI qw(:standard);use CGI::Carp qw(fatalsToBrowser);use strict;
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[Code]....

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Code:

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Code:
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If you haven't understood what I want - ask.

Now I will try to explain this with example.

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Code:
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