Using Prototype To Update 2 <div> Tags?

Aug 31, 2009

I am using prototype to update 2 div tags. Unfortunately, only one tag gets updated and the other goes blank.Here's my JS:

Code:
function updateWith(a){
var url = a+'.htm';

[code]....

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Only In IE, Prototype's Element.update() Doesn't Work Multiple Times

Sep 17, 2009

The following code works find in firefox and chrome. In IE, it only works the first time I click on a link.

// I have some div's where help is, which I make non-viewable
<div id='help_guides'>
<div id='issue1'>Help with issue 1</div>

[code]....

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JQuery :: Update Multiple Div Tags Predators

Nov 9, 2011

I have a webpage that contains a ton of php code. Every so often I need a jquery to update a few areas of the page. I can make a separate jquery for each div tag but it would be a lot simpler if I could update each using the same jquery. This is my code for updating div tag predators.....
<!-- Only updates single div tag. look into updating multiple div tags in same jquery-->
<script src="[URL]"></script>
<script>
$(document).ready(function() {
$("#predators").load("predators.php");
var refreshId = setInterval(function() {
$("#predators").load('predators.php?randval='+ Math.random());
}, 9000);
$.ajaxSetup({ cache: false });
});
</script>
The big question is; is it possible?

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JQuery :: Script Tags Stripped On Ajax Update?

Jun 15, 2011

I am using jquery ajax to load a comment element when editing a participant. After submitting a comment the whole element is dynamically reloaded, including the script part. Which looks like this:

[Code]...

This works for the first time, but when I try to submit again, the script block is missing and the ajax doesn't work anymore. I have read that with "dataType:"html"" the script part is evaluated on load, but I don't want that, or do I? How can I disable that? With "text" or "script" it doesn't get better...

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Difference Between Object.prototype And Function.prototype?

Nov 25, 2011

According to ECMAScript, the root of the prototype chain is Object.Prototype. Each object has an internal property [[Prototype]] that could be another object or NULL.... However, it also says that every function has the Function prototype object: Function.Prototype, it confused me, because a function is an object, for a function object, what is its function prototype and object prototype..For example:

var x = function (n) {return n+1;};

what is the relationships of x, Object.Prototype and Function.Prototype

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How Come Object.prototype Inherits From Function.prototype

Dec 14, 2009

I am trying to get to the bottom of javascript object, prototypes etc. I have a fairly good grasp of it, but I get confused the closer I get to the base object.prototype. FIrst of all, I was under the impression that all objects descend directly from Object. But some objects (like Array) seem to inherit properties and methods from the function.prototype. So does this mean that the chain is like this:

object -- function -- array Second, I noticed (on the mozilla javascript reference site that object.prototype inherits properties and methods from function.prototype and vice versa!? How can this be? I must be missing something important about understanding the chain?

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JQuery :: Unable To Get Toggle Effect Working Having Different Div Tags And Different <a> Tags

Dec 15, 2011

Can't seem to make it work, I have seen many examples but they are all just for 1 div tag. When i trymore than one it doesn't work anymore.The first one works, if i have more than 1 then the other don't work.

using the following jquery
$(document).ready(function(){
$("#toggle-text").click(function () {
var divvalue= this.value;

[Code]....

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Firefox - Select A Word And Wrap [b] Tags Or [quote] Tags Around It

Dec 28, 2010

I use Firefox and am wondering how to select a word and wrap [b] tags or [quote] tags around it?

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Input Tags Outside Form Tags ?

Jul 12, 2010

Is it possible to trigger the action of a form with a submit button that's outside the form tags? If so, how should this example be rescripted to make the input tag work outside the form tags?

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Find <a> Tags With <img> Tags In Them?

Jun 25, 2010

I really know nothing about how to code JavaScript (I know what it is and what it does) and I need a script to go in the head of my page and look for all <a> tags that have <img> tags inside of them and add a rel="lightbox" attribute to them.

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With And Prototype

Aug 24, 2005

I can use "with" like this:

function MyObject(message)
{
this.message = message;
}
function _MyObject_speak()
{
alert(this.message);
}

with (MyObject)
{
prototype.speak = _MyObject_speak;
}


I was wondering why I can't use "with" like this:

with (MyObject.prototype)
{
speak = _MyObject_speak;
}

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Cracking Prototype.js

Jul 23, 2005

One of the complaints about prototype.js (google for it if you're not
familiar with it) is that it's poorly documented. I have this inkling
that the key to understanding prototype.js is in the bind function.

The problem with Javascript is that the "this" operator is poorly
overloaded and it is often hard to understand in the context of
object-oriented javascript

So, let's start with the definition:

Function.prototype.bind = function(object) {
var method = this;
return function() {
method.apply(object, arguments);
}
}

As I read this, it states that all functions (which are themselves
objects) will, in the future, have an associated method called "bind".
The function() function, so to speak, simply instantiates a Function
object with the parameter list and then evals the statement, sticking
the resulting execution-tree in the current code frame.

The "this" there refers to the function object associated with the call
to bind(), right? But the word "arguments" there refers to the
arguments passed to the function object *generated by* the call to
bind().

In every example within prototype.js, bind() is called either in a
constructor or within a method contexted to a javascript object, and is
always called with "this" as its argument, e.g.:

this.options.onComplete = this.updateContent.bind(this);

As I read the code it seems to be stating that the "this" object
referred to within bind()'d functions are being coerced into always
referring to the current instantiated object.

But isn't this always the case anyway? Is this a rather confusing
attempt to ensure "this" purity whereby the call

method.apply(object, arguments)

is forced to always have the reference to the containing object present?

I think I've got it. Bind() generates uniq functions that contain live
references to the objects to which they belong, such that the function
object can then be passed to setTimeout() or onMouseOver(), handlers
that accept functions but not objects.

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Object.prototype

Mar 15, 2006

Lets say we run: window.alert = function() { };

Is there anyway to 'restore' the original alert() method or is it gone
forever?

I know you can do window.alert = Window.prototype.alert, but lets say
you also set Window.prototype.alert = function() { } or lets say we're
in Opera, which doesnt have a Window "class".

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Prototype.js BindAsEventListener Without 'this'

Jun 5, 2006

I would like to set up an event observer outside of an object, so I
can't use this.bindAsEventListener. How can I pass the correct object
reference?

I tried something like this, and various other variations, but no luck.
This works when I set it up from inside the object, using "this.",

Event.observe(targetId,'click',targetId.select.bin dAsEventListener(this),false);

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Object As A Prototype.

Jan 11, 2007

I wanted to add an object as a prototype to separate my methods more
nicely, however, I ran into a couple of problems. Apart from the
obvious "scope" issues I found that any instances of my class shared
the objects methods and properties.

I realise (now) that this is actually how prototypes work, they share
functions and objects rather than create new instances of them for
every "class", but is there any way around it? (or shouldn't I be doing
things like this at all?) Code:

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Having More Than One Object Without Using Prototype

Jan 23, 2007

I am working on my own pop up calendar, mainly because the one I am currently using crashes the Safari browser at times.

So, I want to verify that what I am doing will work, in that I want to be able to have multiple calendars open at the same time, each independent of the other.

So, I start it off with:

var Calendar = {
dateSelected: null,
topPos:null,
leftPos:null,

somefunction:function(e) {
...
}
};

If I create more than one calendar object, will they have their own variables, in that the dateSelected, topPos and leftPos will be unique to that instance?

Or, is there a better way to do this, that is cross-platform.....

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Prototype Inheritance

Mar 4, 2007

In my research in the javascript language I have encountered problems
with implementing prototype inheritance while preserving private
methods functioning properly. Here is an example: Code:

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JQuery Or Prototype ?

May 16, 2007

I want ask you if, for a web portal/application, is better prototype or Jquery? I don't want to innesc some type of flame, but after the announce that drupal use JQuery and that the new Wordpress
2.2 use Jquery I ask myself if my choice of use prototype.js is the bettere choice.

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Updating A Div With Prototype

May 17, 2011

I have <div id ="changeable"> with some html in it. I have a link that calls the function to replace the info in the div. The problem is that the "creative_development.inc" file is added to the top of the div and does not replace the content. How do I replace the content, and not just add content?

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This.prototype.addEvent

Nov 20, 2007

I'm trying to make an addEvent function that will automatically attach itself to the object using a class.

My question is how can I add the function so when I write obj.addEvent("click",myfunction); it will add the event?

Here's my current function:
this.prototype.addEvent = function(type,fn)
{
if(window.attachEvent)
this.attachEvent("on"+type,fn);
else if(window.addEventListener)
this.addEventListener(type,fn,false);
}

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IE And Prototype Problem

Dec 13, 2007

I need help to workaround the following problem:

First, about the environment:
- The web pages automatically generated.
- Pages can be inserted to each other
- When a subpage to be inserted is being generated, it does not know will it be inserted or not.
- That because each subpage uses the <script src=...> tags to load the script it needs.
- in the external script files I'm trying to protect it from repeated execution checking (if(){}) the value of a variable which is created after in the script.

Everything worked fine until I tried to use the .prototype to declare the method of my objects.

In the Internet Explorer, I got "Object does not support this property or method", on the access to a prototype function, because the prototype of my object was deleted by itself after the second load of the external script. Code:

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GetElementsByAttribute() For Prototype

Apr 9, 2006

This function will return an array of the elements in a page that contain a certain attribute, you can also give it a value that the attribute has to match, a tag name that the element has to match and a parent element.

I know there are other functions for doing this, but this one is written for use with the prototype (http://prototype.conio.net/) JavaScript library, in fact its really just a modified version of the getElementsByClassName() function that’s part of prototype.

document.getElementsByAttribute = function(attribute, value, tagName, parentElement) {
var children = ($(parentElement) || document.body).getElementsByTagName((tagName || '*'));
return $A(children).inject([], function(elements, child) {
var attributeValue = child.getAttribute(attribute);
if(attributeValue != null) {
if(!value || attributeValue == value) {
elements.push(child);
}
}
return elements;
});
}

Usage is pretty simple, this will return all elements with a width attribute:

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XML With Prototype And Geko ..?

Nov 13, 2005

I try to get a xml-response with prototype. for e.g. i have the following code:

<html>
<head>
<title>Test Ajax</title>
<script src="prototype-1.3.1.js" type="text/javascript"></script>
<script type="text/javascript">
//<![CDATA[
var getXML = function()
{
var myAjax = new Ajax.Request(
"bsp.xml",
{
method:'GET',
onComplete:showXML
}
);
}

var showXML = function(r)
{
var names = [];
var root = r.responseXML.getElementsByTagName('personal').item(0);
// root
for (var i = 0; i < root.childNodes.length; i++)
{
var node = root.childNodes.item(i); // mitarbeiter
names.push(node.childNodes.item(1).firstChild.data);
}
$('xml').innerHTML = names.join("<br />");
}

//]]>
</script>
</head>
<body>

<p>
<a href="#" onclick="getXML();return false;">TEST</a>
</p>
<div id="xml">
</div>

</body>
</html>

xml-Data:

<?xml version="1.0" ?>
<personal>
<mitarbeiter>
<vorname>John</vorname>
<name>Brown</name>
</mitarbeiter>
<mitarbeiter>
<vorname>Matt</vorname>
<name>Blue</name>
</mitarbeiter>
</personal>

This works fine in IE but in Geko-Browser i got nothing back, because this browsers build the DOM with linebreaks and whitespace. Do you have any ideas what is wrong in my code and how to get propper DOM?

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Prototype + Grep

May 16, 2006

Having read through Sergio Pereira's Prototype documentation I came across the grep command within Enumerable object.

This is something that looks very interesting. Such as being able to quickly select only the elements you want using a regular expression.

But for the life in me I can seem to get it to work.

Anyone a bit more up to speed with Prototype care to have a look?

var elementList = Form.getElements("just-a-form");

nodes = $A(elementList);

var localElements = nodes.grep( /image/, function(node){
return node.id
});

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Ajax (prototype)

Oct 1, 2006

I'm using Prototype's AJAX to get the "alert" the response of a simple PHP script (a script that echoes a single line), but it doesn't seem to work. Here's the code:

function init()
{
var url = "http://localhost/script.php";
var myAjax = new Ajax.Request(
url,
{
onSuccess: showResponse
});
}

function showResponse(response)
{
alert(response.responseText);
}

window.onload = init;
The code has no errors, but still doesn't show the response even if i add an onFailure event handler. What could be wrong?

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Prototype - Get The IDs From .childElements()?

Dec 1, 2010

OK, simple script that currently takes an array of ID values (hard coded) and then iterates through them to fade in and out creating a slideshow.

The obvious problem is I have to hard code the number of DIVs in the slideshow. What I really want is the code to get the child elements of the container I pass it and then iterate through them dynamically.

[Code]...

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