for some time I always found a workaround for this kind of problem. But somwhow, it feels wrong. So I'd like to know, if there's a common way to solve something like this[code]...
I'm defining the function and if the value of 'obj' hasn't until the function really gets called, this can work. But it just feels so wrong do have always global variables just to access them inside of a callback.[code]...
I am writing a small module which will have several different aspects to it, all based around ajax calls. I want to allow the main ajax functions i.e beforeSend, success, complete etc (I am using jQuery) to be customizeable.I currently have an options object in the module which can be extended with an options object passed to an init function. In here, I am passing a 'callbacks' object with nested ojects for each different type of action as in...
var insertCallbacks = {
before : function() {
},
success : function() {
[code]....
To formulate the problem simple i have two buttons with the onclick function:
I guess what im asking is how can you set a variable by one onclick function and then use it in any other function?
I'm new here, and new to js. Here is my problem: I have written out a code to make an image switch from state 0 to 1 and back to 0 again (an eye blink). The code works fine, but I would like to write the functions with arguments so it could be applied to more images. I have tried for a few hours (and searched forums) and am getting no where. Here's my code.
Code:
function home_blinkDown()
{
//alert('blink down');
var t = setTimeout("home_blinkSwap('home_js', 'images/main/home_blink.png')", 2000);
[Code]...
I'm trying to trap a user entry that cannot be found in the database. When a code is entered, the page should give a "Code Not Found" message if it is an undefined value.
However, it didn't; and it always shows the "undefined" value to the page instead.
Here's what I actually did:
getting user input:
Finding the code:
I'm trying to make a function that will disable elements of a form based on which options are selected.
I have made this work for individual form controls but now i want to make it into a function that could be used on any form control.
Here is the broken function
Code:
I've probably just missed something but i really cant see what?
Is it possible to access local variables like I access global ones, ie. window["hey"] retrieves the global variable "hey".
View 1 Replies View RelatedI have acollection of local variables populated via Flash movies and scripts, and now I need to submit an ajax post (can also be get, but prefer post). I have tried:
$.ajax({
type: "POST",
url: "/myurl",
data: "p1=" + localParam1 + "&p2=" + localParam2,
success: function(msg){
alert( Bingo: " + msg );
}
});
The problem with this is the encoding of the localParam1 and localParam2 sometimes breaks the normal & delimeters. An even more problem is I sometimes haveupwards of 25+ local variables that I need to submit. These inline +s makes it feel, and look, like one huge hack - not to mention the encoding. One last restriction: I cannot use any jquery plugins due to the company's policy. So, I'm looking for something small and light as a solution - not a plug-in. Isn't there an easy way to do this? ONe thought I had was to create a new <form> on the page, and insert the variables as new <input /> fields - and then finally submit the entire form. Again, a big hack + css
I can't seem to get a variable declared from within a post callback, so that I could manipulate my script accordingly. I have delete.php, that deletes an id from a mysql db. If it fails, I want the script to stop and display the error. The .php script echos an "ok" if everything went fine, if not - it echos the error.var abort_error; // set the error variable
$.get("delete.php", { delete: $(this).parent().parent().parent().attr('id') },
function(data){
if(data != 'ok') {
[code]...
In jslint's doc it says, "JSLint does not expect that a var will be defined in a block. This is because JavaScript blocks do not have block scope. This can have unexpected consequences. Define all variables at the top of the function." What are some of those unexpected consequences?
View 1 Replies View Relatedi'm having the following problem, normaly i work with html css and php but for this to work i need to make a litle javascript function and i'm still kinda new to it. so here is my problem.i'm making a search field where someone has to select some radiobuttons.first it has a selection out of 4 items and then a selection out of like 20 but how do i get the value from the first function in the second?in this case i would like to have the following in function showStreek:
xmlhttp.open("GET","test3.php?l="+land,true);
this line should look like:
xmlhttp.open("GET","test3.php?k="+kleur"l="+land,true);
[code]....
I am trying to convert some of my javascripts into a class and am
running into difficulties which i think are related to variable scope.
Basically I have a constructor function for a calendarInput class that
takes 4 parameters, the first is a reference name/number for this
input. I also have some functions for importing my PHP classes into
Javascript using AJAX (properties only. still trying to get methods
working but that's another story!). The relevant function is called
call_object_method(classname, methodname, createparams, methodparams,
post, callbackfunction). This creates an instance of the specified PHP
class using the parameters in createparams. It then calls the
specified method using the parameters in methodparams. The result is
passed back to the javascript function specified in the callbackfunction parameter (ie the value of xmlhttp.onreadystatechange is set to callbackfunction before xmlhttp.send() is called)
The function i am trying to fix is called show (x,y) which creates the
html for the calendarInput and displays it at co-ordinates x, y.
So, my code is as follows:
function calendarInput(calendarid, target, displaytarget, value)
{
this.calendarid = calendarid;
this.target = target;
this.displaytarget = displaytarget;
this.value = value;
this.show = function(x, y)
{
<!--// bunch of init and prepping code. includes creating
createparams and methodparams arrays //-->
call_object_method("cms_calendar", "getcalendarview",
createparams, methodparams, false, this.showcallback);
}
this.showcallback = function()
{
alert(this);
<!--//code to create html//-->
}
}
I know i've cut out most of the innards of this. This is because I
have already tested these functions and had the calendarInput working
outside of a class, hence am pretty sure that this is ok (plus it runs
to almost 1000 lines these days!!). My problem is that when I call the
show method, the alert on the first line of the callback function
returns the function showcallback instead of (as i was expecting) the
instance of the calendarInput object. Whilst this kinda makes sense I
can't figure out how to reference the Object instead. I have tried
'this.parent' but this returned undefined. I have tried changing the
way i reference the callback function (ie the final parameter of
call_object_method) but no joy.
I am struggling to find examples on the web that implement Javascript
callback functions of an embedded Real Player.
There are lots of examples for Visual Basic, but I couldn't find any for
Javascript.
I am looking for any basic example.
For example, showing a javascript alert when a Real Player error is
triggered. (with examples for both Netscape/Firefox and Internet Explorer)
I have many forms on a page. When a user click on a new or upate link, releated forms shows up in a dialog box and i validate it .
What my problem is i after i validate the forms i want them to go to it's own callback. Every callback functions is different according to forms.
How can i set different callbacks to each process.
Code below isn't work exactly. It always alert "test1";
Code JavaScript:
// JavaScript Document
var process = function() {
this.url ="";
[Code].....
how to avoid temporary (local) variables to reassign this.Example as follow:
function Test(id){
this.id=id;
this.init=function(){
// some initialization go here
[code]....
This is terrible because it breaks the structure, and so many local temporary variables will be instantiated (possibly they will eat up the memmory).However, this type of reference is just so popular in jQuery, and they got a beautiful solution. Example:
$('li').each(function(){
// Do with $(this). This is beautiful, but I don't understand how could they make this scheme.
})
I cannot findout how I can write to global variables in a a JQUERY function.
<script type="text/javascript">
function checkusername (username ) {
$.post("[URL]", {
action: 5, username: username },
function(xml) {
result = $("apot", xml).text();
//<-- this variable is not global... why ??
message = $("message", xml).text();
//<-- this variable is not global... why ??
alert(message); //<--here variables are shown ok
alert(result);
});
alert(message);
//<--here variable is NULL !!
alert(result);
//<--here variable is NULL !!
}
</sctipt>
This probably seems pretty trivial to you experts but I just don't know why it doesn't work and would like a nudge in the right direction please.I have a sllide and fade that works great - no problems. I am firing it with a function call from the HTML like so;<a href='#' onClick='sfade('#s1'); return false;>as you see I am passing the div to be faded(and slid) as a variable. Works great. The receiving function is:
var str='';
function sfade(str){
$(str).slideFadeToggle(1000);
[code]....
Im simply trying to make a dynamic searchbar so that the results pop up as someone write in the keywords. Problem 1 :When i pass foreign char types through jquery's $.ajax(); such as:
[code]....
they get translated to some weird characters when i try to compare them in the mysql database.javascript side:
Code:
$("#id_study4").keyup(function() {
var keyword = $("input[name=study4]").val();
var school_id = $("select[name=school4]").val();
[code]....
And the second problem is simply when i get he search results, i have the keyword emphasized with bold font weight, and text underline so that people can see. The problem here is that if i search with the keyword bach, then result becomes <b>bach</b>elor with all small letters when it should be <b>Bach<b/>elor. The way i have done this can be seen below:
Code:
str_ireplace($keyword, "<b>".$keyword."</b>", $study['study_name'])
Is there a way to pass arguments to the callback function used inside an addEventListener? I see that I can only list the name of the callback function. For eg, I use this:
var boldLink=document.getElementById('cmtbold');
boldLink.addEventListener("click", rBold, true);
I need the id of boldLink to be accessible from inside the function
rBold()
What I'm trying to do is quite simple but as a beginner I'm getting incredibly frustrated with it. Here's my first attempt. I plan to do something a bit more fancy with the images, but I could see straight away that this wasn't the solution. Mouseover was changing the image before it had faded out and looked horrible. So, I thought I might put all the images in the same place and hide them, making them visible and bringing them to the front on mouseover of the corresponding hotspot.
[Code]...
I was using this:
But now I want to use the JQuery:
How do I pass the parameter to the function? Would I set an attribute and read it with[att=XXX] where the attribute is the echo'd $Region or is there a better way?
I have a div on my page that is populated by a php calendar. The calendar also has month and year input fields so that the user can browse to different months. I would like to create a jquery function so that, when a user changes the month or year field, the div reloads the calendar and passes the selected month and year variable back to the php script. Here is what I have on my page:
<head>
<script type="text/javascript">
function startCalendar(month, year) {
[code]....
I'm trying to pass data to my mySQL database, but I'm doing that 2 jQuery scripts:User comes on my page where there is a list with some values, e.g 530, 532, 534 etc etc ..User clicks on one of them, this link is using the jQuery to get another php file which get's the data from my DB and list it below the first list, here's the code for this:
$('#letter-e a').click(function(){
$.get('e.php', {'depot': $(this).text()},function(data){
$('#dict').html(data);
[code].....
So the second list is another step that can't be avoided to get the final result. In other words, i'ts another list where the user has to chose one of the items from the list to see the final result, I've added this code inf the 'e.php' file:
$('#letter-f a').click(function(){
$.get('f.php', {'date': $(this).text()},function(data){
$('#entry2').html(data);
[code].....
The problem is that my 'f.php' only gets 1 variable value, but I'll need 2 or more (maybe in the futur), how to pass multiple variables to a php file using jQuery?
here is my code:
<script language="javascript">
// Upload progress bar
jQuery(function () {
jQuery('#upload_form').uploadProgress({
[code]....
^ This code I got online and it is very peculiar to me. It isn't tied to a function that can be called the documentation has the code just free floating. My problem is that I want to have this code be able to have access to native javascript variables. It seems the second I go into the .getJSON function I no longer have access to any other variables. How do I go into a JQuery function while still having access to native js variables with this code specifically?
Without using a global variable, how do I pass a variable from one plugin to another? For instance, \autocomplete gets some variable on line 14 and dialog saves the variable on line 17.
[Code]...
i have this problem in passing values to a variable in a jquery function.
i have a js variable that accepts a certain value and then i want to pass this variable in the jquery function.
For example, this is my script:
var autoScrollBool = "true"
var autoScroolInt = "10" (seconds)
stepcarousel.setup({
[Code].....
i want to replace the value of autostep: {enable:true to enable: utoScrollBool(the variable i created) , when i tried to assign it as is, its not working.