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].....
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?
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?
placement of the return in the following code:
var abc;
try{
//there can possibly be 1 or more answers;
abc = getAnAnswerFromPossibleAnswers("type","key");
[Code].....
One person says the return should go inside the try because otherwise during runtime a null pointer exception (NPE) can be thrown. The other says they tested and never got an NPE - even if the value didn't exist, abc[0] returned an empty object (the test showed it returning empty curly braces).
Must the return go inside the try or is it ok to be outside as in the above snippet?
I have a calendar where i write my events.
If I have 2 events in the same day, how to put a carriage return between the
events in the alert part of message?
For example, I want this alert message:
Event one to the office.
Event two to the store.
The string that I use actually is:
fAddEvent(2003,9,17," Event one. Event two.","alert('Event one to the
office. Event two to the store.');","#00ff00","red");
I am new to this discussion but hope you would post reply for my query and encourage me to keep in touch with this discussion. Well here is my problem. I have made an edit in place form in which we can add and remove the elements. I have used jquery.jeditable.mini.js and jquery.duplicate-remove.js plugins for edit in place and add and remove action. I have live() function to access the dynamically ganerated elements like this. $(".addressDiv span").live("mouseover", function(){
clickable function here...
[Code]...
how can i set an interval inside a class
exmpl.
var Class = (function() {
var interval = undefined;
function initInterval(instance) {
interval = setInterval("doSomething", 1000, instance);
}
function doSomething(instance) {
alert(instance.message);
}
function Constructor() {
this.message = "hello world";
}
Constructor.prototype.init = function() {
initInterval(this);
}
return Constructor;
})();
is not working correct. doSomething is not known. i think, setInterval
is not inside the class, so doSomething is private and unknown for the
interval.
I want to set a css class to an anchor tag inside a div and one li using javascript.
<div id="firstid">
<ul><li id="home" class="first">
<a id="anchor1" class="anchorClass">home</a>
</li>
</ul>
</div>
I have something like this:
<div class="someClass">
<div>text</div>
<div>text</div>
[code]....
Im trying to set up a XML document object within a class declaration(mozilla only):
MyClass.prototype.loadXML = function(file)
{
this.isLoaded = false;
this.xml = document.implementation.createDocument("","",null);
this.xml.onload = this.fileLoaded;
this.xml.load(file);}
MyClass.prototype.fileLoaded()
{
this.isLoaded = true;}
Somehow, the isLoaded property doesnt seem to be set to true when i
create an instance of the class. I tryied passing the object instance
through an argument
...
this.xml.onload = this.fileLoaded(this)
...
MyClass.prototype.fileLoaded(obj){
obj.isLoaded = true;}
but i get even weirder results. Any ideas?
Basically we need to find a word which is inside a class and display a link.
So something like this
find a word equal to "1 line custom"
then
display this <a href="/1-line-custom.htm">click here</a>
Basically we need to find a word which is inside a class and display a link.
So something like this find a word equal to "1 line custom" then display this <a href="/1-line-custom.htm">click here</a>
I'm trying to "progressively enhance" one of my surveys using javascript. Basically, I have rating scales that make use of radio buttons as each point on the scale. Each radio button occupies its own cell in a table. I wrote some functions that will highlight cells on mouseover in a color corresponding to its position on the scale (e.g. the lowest point is red, the midpoint is yellow, the highest point is green). When a radio button is clicked, the background of the button's cell and preceding cells in the same row will be colored accordingly. The functions are working well in FireFox and Chrome (I just have to add a few lines using the addEvent function to make it compatible with IE).
The effect looks a lot nicer when I add a function that makes the visibility of the radio buttons hidden.
However, I want to make sure that there is a fallback option in case the functions that color the cells don't work for whatever reason. I would not want the radio buttons hidden in this case.
Is there a method whereby I can call the "hideRadiobuttons" function only if the other functions are successfully executed?
i've got a function which makes a call to the database( via jquery $.post) to check if a username already exists. All the data I get back is fine and both the conditional statment works as intentded. I just can't get the function to return a value to the other function that calls it. Could this be something to do with the scope.
Code:
function checkIfUsername(o)
{
$.post(""+CI_ROOT+"index.php/admin/check_if_username",{
username: username.val()
}, function(data){
if(data.bool == true){
[Code]....
Afternoon all, Have a pretty simple function, that requests a number to be entered.
I want to return that number, but i seem to be typing something wrong in the return value.
function newFunction(a, b)
{
var newArray = new Array(a);
for (var i = 0; i < 5; i = i + 1)
[Code]....
I am populating a field on my page using a php include. I am asking javascript to update another element with that field's value. The value written to the select input box is Ƈ:Any Provider'. The process works fine in Firefox. In IE6 it does not write. the value nor does it throw an error. What am I doing wrong?
input form:
[PHP]<form method="post" action="" name="inputForm">
<label for="provider">Name of Provider</label><select class="input" name="provider" size="1" style="width: 20em"><?php nameprov();?></select>
<input type="button" name="button" value="Upload" onclick="postthis()">
<div id="status"></div>
</form>
The script in the head element:
function postthis(){
var provider = document.inputForm['provider'].value;
var report = document.getElementById("status");
var message="The Value of Provider Block is: " + provider;
report.innerHTML = message;
}
In firefox, "The Value of Provider Block is: 1:Any Provider" is written in the report element. In IE6, "The Value of Provider Block is : " is written in the report element.
I know the answer must be yes, but I am really having a hard time figuring this out. I have a simple script below, that calculates age (I know I need to do some more work). I want to redisplay the value returned from the function. It works OK, because the result displays correctly in the alert. Code:
View 23 Replies View RelatedI have a form and a submit button .on clicking submit button function validate call.this function call another function (say func) .this func function vallidates some input and return true or false value to the validate function this then return true or false value to the submit button .I want that func directly return true or false to the submit button.
View 2 Replies View RelatedHow can I use the return value from prev_picked() in my ajax call?
Code JavaScript:
function autosuggest_results (info)
{
if (info.length > 1)
[Code].....
I am having a strange problem with a javascript function that does not return the value but returns the code inside the function. My best guess is that I am incorrectly calling the function hasLandedOn()and jquery is interpeting it. Why is this happening? I highlighted the parts in red.-Tom ReeseThe following is returned NOT the variable imageName.
function hasLandedOn(){
var selectorLoc = $("#selector").offset();
var imageName = "";
[code]....
I have what I think is a strange issue but others may see something I am missing.I am using AJAX functionality to process a php script on a server and then place the output of the script into a div element.Here is the code snippet
Code:
function doWork13(typeCode,colorBlockName,objectCategory,imgID){
httpObject = getHTTPObject();
if (httpObject != null) {[code]....
This code shown here works perfectly BUT....I do not want the alert message to be there. When I remove that line of code the script fails to function. There is no error just nothing happens.The function is to replace one image with another and the variable in question is simply the ID tag of the particular image being modified.As I said it works with the alert but does not with out, could it be a timing issue in that the alert gives enough time for the if statement in the setOutput13 function become TRUE
Can javascript using pointer or pass variable by reference?
Or I need to using object or Array to return the two values?
I have a multiple choice quiz that works fairly well. However, instead of it presenting "End of Quiz" message when last question is completed I need it to take the user back to the beginning (question 1) but with no indication to the user that this has been done. How can I adjust the code to have it do this?
<script language="JavaScript1.1">
var whichone=1
var tempmn=document.quiz.thequestion
function generatequestions(){
document.quiz.theresponse.selectedIndex=0
[Code]...
I want to pass a javascript function's return value, to an anchor tag's href parameter i.e. <a href>
Suppose I have a function called getTrackingCode( ) that contains a value "testSite"
<script language = "JavaScript">
function getTrackingCode( )
{
return "testSite";
}
</script>
Now I want to pass this function's value to anchor's href, I have attempted these:
[Code]...
I have a desire to include more than one return statement in a function I have written so that when it has found the solution to a hit-testing series of conditionals, it returns the solution. The desire is to avoid further hit-tests when solution has been found. I've always felt that more than one return statement in a function is poor style, since it may lead to false execution of a function - by way of a later code edits - making a mistake by forgetting the multiple returns. My function is short and maybe the optimisation exists only in my head but are there serious reasons why one should not have more than return statement? This JS code executes in the Quartz Composer framework and has nothing to do with we programming (context (-:)
Here it is with three returns, it 'works' and I could replace all the break statements with return statements to finish optimizing:
//Test for y inside range for all quads ( Quad is defined by 4 points in a row in the list is a quad ie. list[0-3], list[4-8],
//Test along the unit numerals (_N) and also the 'Revert Patch' button
if (y >a[0]["Y"] && y <a[2]["Y"]) {
for (i=0; i <37; i+=4) {
//Log("DDDDDDD "+i+" X:"+x+" Y:"+y); .....
I've been reading up on Javascript. I read that you can use:
document.write("<h1>My Test</h1>");
So I wrote a little script:
<script type="text/javascript">
var choices = new Array();
choices[0] = "<img src=\"crush.png\" />";
choices[1] = "<img src=\"curse.png\" />";
choices[2] = "<img src=\"endless.png\" />";
choices[3] = "<img src=\"eyes.png\" />";
[Code]...