Did any one use bind inside for-in loop? In my case it never work correctly whatever I do.I'm trying to go through a collection of objects using for-in and bind MouseEnter handler for each object.What happened is the handler I bound to the last object works for all the objects?!
View 2 RepliesI have 2 or more objects that onclick(), will call the same function. Right now I have the following:
....
$("#obj1").change( function() {
setupPage();
});
$("#obj2").change( function() {
[Code].....
I was wondering if there is a way to simplify or clean up the code, since they are all doing the same thing and responding to the same event. This is just for refactoring reasons because my code is getting too long/messy.
I am working on a project that takes links on a page (Not all, depends on if they are Merchandise links or partner links), and passes some parameters to a tracking js call.The problem is, I don't want to put 'onclicks" on every href as there could be a hundred on a page and many of the links are dynamically generated on the backend.So, I was thinking of creating a function that took in parameters from each of the links that are pressed. we have two links (there will be many more, but for an example sake).
<a href="somelink.html" id="linka">link a</a>
<javascript>
var cu = new Linktracker({
[code]...
Should I use just "bind" or "bindAsEventListener"?Since each link on the page is unique and will pass different values, what is the best way to do this without putting "onclicks" on every link?
Windows Media Player, Adobe Reader, etc.
None of these can have events interacted with via jQuery's bind(), although falling back to the native implementations work fine.
I use the live - method to bind a handler to a click-event for all links with class "userDiv"
When I DON'T use this and use instead the "normal" click handler
I can still use the middle Mouse-Button in Firefox to open the link in a new tab without any jquery-stuff
But when I use the live-method (and it would be nice to use it) the middle Mouse-Button behaves like the left one.
It looks like when I do $("object").bind("<mouse-event>") the event isn't actually being bound to the element in Chrome and Firefox (not sure about IE). Using $("object").each(function()
[Code]...
I have been working on a paging and it all works fine , the codeit's based on the code from this page [URL]
I have tried to recreate thenavigationto work before and after the table I can put the data there but it does not worksimultaneously the before and after navigation
I have tried several solutions but I can't get it to worksimultaneously
I am looping through an array of objects and creating an <li> element for each one and appending to a <ul> in the DOM. Works fine.During the looping I am also attached a 'details' object as data for the list element:$(thisListItem).data('details',{<obj>});Later, I am using the selector:$('ul#images_list li')to attach an on click function for each <li> element.In the click handler I am reading the data 'details' object for the <li> element:dataDetails = $.data(lotImage,'details');and, using the jAlerts plugin, I am opening a jPrompt which asks for the user to enter a price.
The jPrompt call includes a callback which receives the entered value as a parameter. The callback uses the value to 'post' the updated value, via $.ajax, to a server side unction.After OK is clicked in the jPrompt popup, in Firebug, I get an error that the dataDetails is undefined and it lists the line number in the click handler where I originally read the data object from the <li> element.I don't really understand why it should care after the click event has fired and the jPrompt callback has been invoked
I have a set of div elements cached inside var divs = $('#myDivs'). Suppose another div comes along that i want to add (push) to the group. is there a simple method for doing this without selecting ones already in the group for a second time?
View 3 Replies View RelatedHow do I go about comparing two jquery objects to see if they're actually the same html object.
I've got:
This should add a border to every object in the selected set except for the one defined in someobject... shouldn't it.
I have simplified the problem - see image.[URL]I instantiate object obj1 which inturn instantiates subObj1. subObj1 is a slave to obj1. obj1 registers a handler function called method1 with subObj1 so that subObj1 can tell obj1 when it has finished.For example: call subObj1.subMethod2() to get the sub object to do something.subObj1 calls subMethod1 when its finished with its task, which inturn causes method1 to be called.
If I call method1 directly from obj1 'this' refers to obj1.However when method1 gets called by the subObj1 through the event handler mechanism,I find that 'this' has been changed to refer to subObj1.This is a problem as now method1 has lost all connection with its object obj1.If I define method1 within the 'Class1' function, I can get it to work if I use the 'var me = this;' trick, but if you have lots of methods within Class1() with further nesting this can get a bit hard to read.So, can someone tell me how to deal with 'this' changing. I.e. I want 'this' to refer to obj1 within method1.
<html>
<body>
<script type="text/javascript">
[code]....
On another note, there seems to many ways of defining methods (e.g using 'prototype' etc etc) and I gettting sick and tierd of a 'trial and error' approach to get things working. Can anyone recomend a good resourse that sets out the best way to design with javascript so I dont keep running into these issues.
I've been playing around with JS for a while, but I've not ever found fantastic learning resources. I'm comfortable with other programming languages, so I'm very interested in OOP programming for JS, and I've started to use tools like the Prototype library for that purpose.
However, one problem has consistently caused me problems whenever I'm writing a JS Class. How can I get a reference to the specific class instance from inside an event handler that I create with a class method. Let me give an example of what I want to do:
(This code is using the Prototype library...)
myClass = Class.create();
myClass.prototype = {
makeLink: function(obj) {
// Out here, "this" refers to the instance of the myClass Class
obj.innerHTML = ''
obj.onclick = function() {
// In here, "this" refers to the clicked on element.
// How do I get a reference to the instance of myClass in here?
}
}
Here's the best way that I know how to do this right now. It seems to work in Firefox alright, but doesn't seem to work in IE:
myClass = Class.create();
myClass.prototype = {
makeLink: function(obj) {
obj.innerHTML = ''
self = this; // Save a reference to class instance as "self"
obj.onclick = function() {
// Self is evaluated to instance reference at time of assignment to onclick
self.linkClicked();
}
linkClicked: function() {
// Do something useful here
}
}
Is there a more elegant way to do this? I could just create all of my event handlers for objects outside of the class in procedural code where I already have a reference to the class object, but I like to wrap these things up inside the class, because sometimes they get significantly more complicated than this very simple one. Anybody have any solutions? This has to be a common design pattern...
is there a way in jQuery to bind variables to function calls similar as prototype.js does it? See [URL]
E.g. in the slideUp method of jQuery you can specify a callback that is called after the effect has finished. I would like to bind a variable to this call so that it is used inside of this callback as a closure.
I was under the impression that I and object/associative array could have other objects as the keys for properties. That is, I should be able to set myObject[anotherObject] = 1. However, while this seems to work at first glance, any new object I set as a property key overwrites the first one.Here is the result of me testing in my Chrome console:
> var obj1 = new Object();
> var obj1.someProperty = "test"
"test"
[code]....
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 RelatedI have a code set up something like this:
[Code]....
The problem is I keep getting an error along the lines of: TypeError: Result of expression 'house' [[object Object]] is not a constructor. It seemed to work when I wasn't passing the other objects as parameters in the constructor. I just created and assigned them later. As in:
[Code]...
Trying to figure out OO programming for JavaScript and I'm totally lost.
Here's what I'm trying to do:
I'm posting search data to a PHP form to run a query on a database.
The structure is sort of like this:
So I'm thinking I need to create search objects or arrays. Initially, I thought I could do something like this:
Code:
This doesn't seem to work. It says object not defined whenever I try to do something.
I've also tried creating a JSON object like this:
Code:
This will allow me retrieve the data like I want to:
Code:
The problem is I can't figure out how to add data to the JSON object without manually typing it in. I need to be able to loop through form elements on my HTML page and set them to these variables. I'm using jQuery and doing something like this:
Code:
Is there a better way to extend object with internal objects?
$.fn.bestShow = function(s) {
var d = {
width: 0,
height: 0,
order: "numeric",
orderBy: "",
[Code]...
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]..
How can I make an input box (or other objects) disabled or greyed out and
still have them submit in the form?
Is there a way in Javascript or Jquery to return an array of all objects underneath a certain point, ie. the mouse position. Basically, I have a series of images which link to various web pages but I have a large semi transparent image positioned over the top of the other images. I want to find the href of the background image that the mouse pointer clicks over.
View 1 Replies View RelatedI just want to make a note of a recent fix I installed that was confusing me for quite a few days, just in case anyone else has the same problem.I have a menu which will slideDown and slideUp as the user traverses it. Each node of the menu was binded to a function that did the logic.When the frame was small enough to force a scroll bar, clicking on any node, no matter where the scroll bar was, would force it to the top.Originally, I had
Object.bind("click", handleFunction)
To fix the problem, I changed the above code to:
Object.bind("click", function(event) { handleFunction(event); return false; });
Since jquery 1.7 there is a new method, named: on(). What is the difference between .bind() and .on()?
[URL]
i'm loading a simple svg file with the embed html tag:<embed height
='280
' id
='map
[code]....
I am using jquery autocomplete but i don't know how to bind id and text both from database.
View 1 Replies View RelatedI'm looking for a way to catch a click on a link, show a popup message then... continue with the action.
[Code]...