Ok...so here is what I have:
function myClass() {
this.checkLogin = function(name,pwd) {
if(name.length > 0 && pwd.length > 0) {[code]....
Everything works above. The first alert shows that this.status was set to 'error'. However, if I call myClass.getStatus(), I get undefined. How can I get the parseData function to set the variables in the parent function?
I'm using jquery to make it easy for AJAX calls.
So I create a class: function cMap(mapID){//vars and stuff}
I go and prototype a function: cMap.prototype.loadMap = function(){ //jquery AJAX call }
Now in the jquery $.ajax({...}); call, I use an anonymous function on the "success:" call: success: function(data){ this.member = data; }
My problem is that inside this anonymous function call I'm trying to call a class member of my cMap class to store the data in from the AJAX call, but it's out of scope. So the JS console in FF/Chrome throws errors about bad value/doesn't exist.
How can I access this class member from inside an anonymous function? Or at least what's a good way to go about doing all this?
I was wondering how to access parents class variable. For example:
Code:
function Class(){
this.variable; }
SubClass.prototype = Class;
SubClass.prototype.constructor = SubClass;
function SubClass(){
this.secondVariable = Class.variable; <-how to access parent variable?
}
I am trying to declare a variable inside a function and use it later on in my code... but it just already returns white space... i.e. not variable value. I am setting it within this function:
function show_video1(){
document.getElementById('video1').style.display="block";
var video1Name = "Education World News (Part 1)";
document.getElementById('video2').style.display="none";
document.getElementById('video3').style.display="none";
document.getElementById('video4').style.display="none";
[Code]...
and trying to call it later on with this: <script type="text/javascript">document.write(video1Name)</script> It might be worth noting that each one of my 11 videos will hace a different name.
proper way to execute helloThere() from the parent function getHelloThere()? This code is not working for me...
index.html
--------------
<script>
function getHelloThere()[code].....
I have a google map which gives directions in different languages based on a select box selection. Google gives directions in English as a default, and if you make the selection AFTER the directions are displayed, then it changes languages. All good so far.
But if you make the language selection first, it still displays in English and then you have to select your option again. What I'd like is to say be able to choose "Italian" and for the directions to come up in Italian on the first hit.
My test page is here (http:[url]...) - you can click on "to here" or "from here" and enter "alyzia, greece" in the input box to see what I mean. I'll post the relevant bits of code below, too. locale is the variable the API uses for language selection.
var to_htmls = [];
var from_htmls = [];
var locale;[code]....
i cant find a way to return a value to a function inside a class...seem that when try to output it(the code with red markup)..its output is undefined..
function AjaxProcess(ElementId,amethod,url,element,callback_function,acontrol,ProcessImage){
this.ElementId=ElementId;
this.amethod = amethod;[code].....
The challenge is as above really. I have a page with an iframe in it, and need to call a JS function in the *parent* page, *from* inside the iframe.
(It's for Google Maps, but I won't bore you with the complexities of that, as it doesn't affect the question).....
In my code a JavaScript function received value from html hyperlink. Value passing successfully, inside product function document.write(a) printing value 5. But how can i print value of "a" inside product function by php. My code is here....
<html>
<body>
<a href='javascript: product(5);'>click</a>
<script type='text/javascript'>
[code].....
I just donīt know the right syntax for this:
I want to change the css class of the li element from the name hidden to the variable filterVal, but i donīt know the right syntax.
Here is the code:
for (var i = 0; i < BS_crm['activityTypes'].length; i++) {
var clickFunc = function(){ activityList.showForm( -1, {blockType:[""+BS_crm['activityTypes'][i]['id'], "0"]} ); };
var type = {
[Code]....
Now, basically what I am doing here is running through one array to create an array of objects, that will be used to create links that will use whatever onClick function I pass it. The problem is that on the second line I need the BS_crm['activityTypes'][i]['id'] to be a value, not a reference. If that line was simply changed to:
var clickFunc = function(){ activityList.showForm( -1, {blockType:["3", "0"]} ); };
I think I've had JavaScript variable scope figured out, can you please
see if I've got it correctly?
* Variables can be local or global
* When a variable is declared outside any function, it is global
regardless of whether it's declared with or without "var"
* When it is declared inside a function, if declared with "var", it's
local, if not, it's global
* A local variable that is declared inside a function is local to the
whole function, regardless of where it is declared, e.g.:
function blah() {
for(var i ... ) {
var j ...
}}
i and j will both be visible within blah() after their declaration.
* the notion of "function" in this context also applies for this kind
of construct:
var myHandler =
{
onClickDo: function()
{
in the sense that whatever one declares inside onClickDo with "var"
will only be visible inside onClickDo. What else, am I missing anything?
I'm making a project which creates tabs with a class. I don't really know how to explain it better but this is how it works:
<a href="#" id="tbs_tabs">Create</a>
<script type="text/javascript">
var tbs = new Tabs('tbs_tabs');
tbs.theme = 'classic'
tbs.create_option('abc','#');
tbs.create_option('abz','#');
tbs.create_option('abf','#');
tbs.create();
</script>
It first creates the new class and tells it the id, then it creates as many options as you want and creates it.
My problem is with this line:
for(i=0;i<this.option_values.length;i++)
{
li = document.createElement("LI");
li.appendChild(document.createTextNode(this.option_values[i]));
addEvent(li,"click",function(){oThis.select_option(i); return false;};
ul.appendChild(li);
}
What I was trying to do here is add an event to the LI element that refers to the current tab class but doesn't use the CURRENT i value but the value that was when the event was first created.
For example.. If my i value is currently 2 and I add the function, then I want that when I call the function, the value will still be 2 and not the current i value. What happens now is when I call the function the value is something like 5 or 6.
I have a set or icons that which over time I replace with a different icon and and add a onclick event to them. This is my code
function updateStatusIcons(retText) {
updatingStatuses = true;
var updates = retText.split("|");
for (z=0; z<updates.length; z++) {
[Code]....
Everything works fine except for the onclick event. In the hover message of the icon, the correct project ID is displayed in the message, hoever in the function, the onclick funtion always loads the page with the last set project id. How can I pass the project id into the onclick function and make it stay fixed and not be the value of that it was last set to?
im trying to change a variable set outside of a function and calling the function with an onchange... i'm having problems getting the variable to change
<script type="text/javascript">
var price = '<?php echo $price; ?>';
function addtwo()
{
if(document.add.size.value == "2xl")
{
price = price + 2;
}
}
</script>
Is it possible to make a variable inside a function global (or at least usable in other functions)?
View 2 Replies View RelatedThis is a follow-up to a post from long ago. I had thought that this would be very simple but damned if I can get it to work.
Basically, I want a value which is generated in a JS function to be included in a <form method="get"> output. For some reason which is beyond me, the value is not being updated and the form is returning only 'undefined'. Here is the code:
JS:
<script type="text/javascript">
function addRow(tableID) {
// CELL 1
var table = document.getElementById(tableID);
[Code]....
For the record, the page is up here: [URL]
I am attempting to use the return value from a nested ajax function as the value for a variable in its parent. However, despite being able to successfully assign the variable within the nested function, it reverts back to its original value after the child function has terminated. Below is the code:
[Code]...
I have a list of most 17 recent entries from a db table and wanna use jquery/ajax to have a next button that loads the next 17 entries when you click it. It passes the 17 variable to the .load which works fine first time around (this is later used as mysql limit), but then I try to increase the start variable with 17 so that next time I click it would pass 34 to the .load (so it loads next 17 again) but this doesn't work, it simply loads same 17 again on 2nd, 3rd ect. click (so nothing changes). use global variables by setting it with var and using it without var inside the function.
<script>
var start = 17;
var loadUrl = '<?php echo site_url('welcome/battles'); ?>';
$("#latestbattlesnext").click(function () {
[code].....
In one of my functions I got the following lambda function. It works as intended, but I got a tiny problem. I'm trying to access the function-scooped variable "matched" and set it's value to "true". The problem is that it seems like the variable is existing as a local variable inside the lambda function, even if it's not declared inside the lambda function itself. So, the change "matched = true;" does not effect the variable that I declared.
Code:
//... code
var matched = new Boolean(false);
xmlhttp.onreadystatechange=function() {
if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
[Code].....
I'm having some problem with return value for a function. I'm trying to access google blogger's API to display blog entries on my site. I'm doing this through JQuery and requesting a JSON response. Everything seems to work ok, but I want to access the link for the blog entry. This is a subset of the "entry" object.
It's structured like this:
Entry:
title,
content,
link:
rel,
type,
href,
rel,
type,
href,
I want to get the link where the "link.rel == "self". To do this I have to loop through the link object (5 times). The loop and conditional statement works correctly, but I can't get the variable inside this loop back to my original function.
I have this code:
$.each(data.feed.entry, function(i, entry){
$.each(entry.link, function(j, link){
if(link.rel == "self"){
var postlink = link.href;
alert("link : " + postlink);
return postlink;
}});
alert(postlink);
});
<script type="text/javascript" src="jquery-1.4.2.min.js"></script>
<script type="text/javascript">
var global_var = false;
function test_func() {
$.post("server.php", function(data){
alert("Data Loaded: " + data);
[Code]...
Code:I am having problems with the following. I am wanting to hide <tr> in my table (employees) and only show employees that are in the selected department (selected via dropdown box).I need to set a javascript array to a php array. I am looping and assigning the array and am wanting to pass a javascript variable as the index in php array. I have marked my problem lines in red. Thanx for any help.
<script type="text/javascript" >
function display_elements()
{
var departments = new Array;
[code]....
I know how to reload the mainform, but accessing a form and setting a
value there?
onLoad="if (window.opener && !window.opener.closed)
{ window.opener.forms[0].elements[0].value='xxx'window.close(); }"><?
I have a class and function within it, like so
[Code]...
That code shows an alert box with 'mb_c is 1' and next alert box as 'other mb_c is undefined'. How do i access the mb_c which is member of Order class within the setup function which has an argument mb_c ?
Ok, so I've built a member search using ajax to change the results each time a filter is changed. It works great, except one minor issue that I'm struggling with...I just can't specify dynamically in the parent file that linkclass$id opens linkclasscontent$id as I don't know of any way to pass that $id variable back over to the parent.
View 3 Replies View Related