JQuery :: Function Returns The Code Inside The Function?
Aug 29, 2011
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]....
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Sep 8, 2011
In this code the lines inside $("#basicSel").fadeOut(fadeSpeed, function() { does not get executed after the fade :( any ideas friends?
$("#basicSel a").each(function(i) {
$(this).click(function doWhatever($e) {
$("#basicSel").fadeOut(fadeSpeed, function() {
[code]...
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Aug 17, 2010
I am trying to declare a variable inside a function and use it later on in my code... but it just already returns white space... i.e. not variable value. I am setting it within this function:
function show_video1(){
document.getElementById('video1').style.display="block";
var video1Name = "Education World News (Part 1)";
document.getElementById('video2').style.display="none";
document.getElementById('video3').style.display="none";
document.getElementById('video4').style.display="none";
[Code]...
and trying to call it later on with this: <script type="text/javascript">document.write(video1Name)</script> It might be worth noting that each one of my 11 videos will hace a different name.
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Feb 15, 2012
I want to call java function in javascript.In which we pass one parameter to function and its returns String value which I want to display in alert message.
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Jul 22, 2010
(function($) { /* code*/ })(jQuery);
$
(
document
[code]....
I know that document.read is loaded when html page is been loaded. But what's the difference between the two?
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Oct 8, 2009
Either I'm having a really dim Friday, or something strange is going on. I'm trying to add a method to the Validator plugin, using the following regex:
[Code]....
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Nov 23, 2010
In Firebug when I rollover the SelectList variable it certainly looks like an array.
[Code]...
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Jun 11, 2009
Today I've tried to create simple hover effect on a <div>: if the cursor is over the box, the background-image css property of the div is modified. On the HTML side, a <div> with an id:
<div id="round">Blah blah
</div>
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Nov 22, 2011
I am trying to make a function that will return part of some xml data, but It keeps returning "Undefined" here is the function, with the call:
Code:
function getUserInfo(u, t) {
$.ajax({
type: 'GET',
[code]....
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Dec 2, 2010
I have a for loop which has a length of 8. It's meant to run through an array of objects and bind a click function to all of them. So the alert should run a range 0-7 but instead it returns 8 no matter which object is being clicked.
for (var j = 0; j < bubbleArray.length; j++) {
$('#icon' + j).bind('click',function() {
var icon = this.id;
this.diam = $(this).width();
[Code].....
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Sep 27, 2010
The goal is to change the source on the fly (as with a firefox extension webdev or another or even Greasemonkey) to add a link. Until then, easy does it work well. This link launches an application ajax jquery like:
$.get(...) or even $.ajax(...)
If I'm on [URL], added my link, I click and it works, I see the ajax request and pass my "alert ()" gives me the return of application. Great! But if I'm on a site other than mine (the url of the ajax request is [URL] while I'm at [URL] for example), the return of the ajax request is empty.
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Jun 29, 2011
Clearly I am invoking this wrong.
[Code]...
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Jan 17, 2011
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
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Feb 3, 2010
In one variable i have some data ex: var data = document.getElementById("imageId").value; I want to pass this data to another function inside another function ex: var button1 = '<img src="images/Remove-button.gif" width="70" height="15" onclick="removeVerifyImageRow(this),saveLibData('+data+')"/>';
while running the application i am getting an error incase if the data is string ex:if data is 'image1' i am getting an error, but with number there is no problem ex: if data is '1122'.
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Feb 10, 2010
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"]} ); };
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Feb 3, 2010
In one variable i have some data ex: var data = document.getElementById("imageId").value; I want to pass this data to another function inside another function ex:
var button1 = '<img src="images/Remove-button.gif" width="70" height="15" onclick="removeVerifyImageRow(this),saveLibData('+data+')"/>';
while running the application i am getting an error incase if the data is string ex:if data is 'image1' i am getting an error, but with number there is no problem ex: if data is '1122'.
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Feb 21, 2010
I am trying to taking this embedded script
Code:
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var strDay;
if ((now.getDate() == 1) || (now.getDate() != 11) && (now.getDate() % 10 == 1)) // Correction for 11th and 1st/21st/31st
strDay = "st ";
else if ((now.getDate() == 2) || (now.getDate() != 12) && (now.getDate() % 10 == 2)) // Correction for 12th and 2nd/22nd/32nd
strDay = "nd ";
else if ((now.getDate() == 3) || (now.getDate() != 13) && (now.getDate() % 10 == 3)) // Correction for 13th and 3rd/23rd/33rd
strDay = "rd ";
else
strDay = "th ";
document.write(dayName[now.getDay()] .....
// End -->
</script>
and turn it into a function called time.
XHTML Source
Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "[URL]">
<html xmlns="[URL]" xml:lang="en">
<head>
<title>Test</title>
</head>
<body>
<strong><script type="text/javascript">time()</script></strong>
</body>
</html>
Javascript Source
Code:
function time() {
var strDay;
if ((now.getDate() == 1) || (now.getDate() != 11) && (now.getDate() % 10 == 1)) // Correction for 11th and 1st/21st/31st
strDay = "st ";
else if ((now.getDate() == 2) || (now.getDate() != 12) && (now.getDate() % 10 == 2)) // Correction for 12th and 2nd/22nd/32nd
strDay = "nd "; .....
But when I do the out put returns nothing. Why this might be. I initially thought that I had the formattingsyntax wrong for the function it self but this doesn't seem to be. [URL]
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Sep 4, 2010
I have four images:
Code:
<div class="main_view">
<div class="window">
<div class="image_reel">
<a href="#"><img src="images/1.png" alt="" /></a>
<a href="#"><img src="images/2.png" alt="" /></a>
<a href="#"><img src="images/3.png" alt="" /></a>
<a href="#"><img src="images/4.png" alt="" /></a>
</div></div>
When rotateSwitch() is called on launch, it assigns the second image to the $active variable (given that the first image was given active class in beginning of script). Then rotate() function is called and we get 1 (2-1) and then multiply by imageWidth. Now the second time the rotateSwitch() function is called, we should get 2 (3-1), but the alert still only returns 1 and the fourth time it only returns 1 as well:
Code:
$(document).ready(function(){
$(".paging").show();
$(".image_reel img:first").addClass('active');
var imageWidth = $(".window").width();
var imageSum = $(".image_reel img").size();
var imageReelWidth = imageWidth * imageSum;
$(".image_reel").css({'width' : imageReelWidth});
rotate = function(){
var triggerId = $active.attr('src').substring(7,8);
var image_reelPosition = (triggerId - 1) * imageWidth;
alert('the value is ' + triggerId);
$(".image_reel img").removeClass("active");
$active.addClass("active");
$(".image_reel").animate({
left: -image_reelPosition
}, 500);
};
rotateSwitch = function(){
play = setInterval(function(){
$active = $(".image_reel img.active").next();
if ($active.length === 0){
$active = $('.image_reel img:first');
}
rotate();
}, 7000);
};
rotateSwitch();
});
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Dec 12, 2011
Suppose we have following javascript codes: Case 1.
var foo = function (){
var x = "hello";
var bar = function () {
alert(x);
} return bar;
} var bar_ref= foo();
document.write(bar_ref()); // it pops up "hello" and print-outs "undefined".
If we modified above code slightly, shown as follow: Case 2.
var foo = function (){
var x = "hello";
var bar = function () {
alert(x);
} return bar();
} var bar_ref= foo();
document.write(bar_ref()); // it only pops up "hello".
As you can see, Case 2 modified the return value from "return bar" to "return bar()," which won't cause the "undefined" output. To me, it looks like when the JS interpreter executes the line "bar_ref();" it triggers the execution of function "foo", besides both "return bar" and "return bar()" do the same job which is to execute function body of "bar".
The only difference is that after the execution of function bar, its function body does not exist anymore, so when the interpreter executes the line "return bar;" it follows the function identifier "bar" and ends up with "undefined". This is why the Case 1 gives us "undefined", but I am not quite clear about why the Case 2 can trace down to the function body of "bar". Do you have any ideas about such difference outputs?
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Oct 12, 2010
I am using jquery for getting ajax responses from server side functions.
I am in a situation where I need to make two ajax calls one after another and the second one is dependent on the response of the first one.
I have tried to use a code which is similar to this one?
$.ajax({
type: 'GET',
url: 'myURL',
success: function(data)
[Code]....
Is it possible to get two have two ajax calls , one dependent on the other?
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Dec 5, 2011
I need to create a code that takes in a function f and a variable x and gives me f(f(x)). For example, if f(x)=2*x and x=3, then f(f(x))=12.
I've tried to look at this from two angles: creating an extra variable to define the function within the function and reusing f on itself. But I can't use either properly.
How can I get my main function to accept a function as its first parameter [function(2*x, 3)]? Is that even possible? I could specify the function f within the twoTimes function, but the point is for f to be a changeable parameter.
I had come up with, but it definitely doesn't work. How should I approach it?
var twoTimes = function(f,x) {
f = function(x) {};
var r = f(x);
return f(r);
};
twoTimes(2*x, 3)
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Jun 29, 2011
How can I reference a function inside of a function using OOP.I am trying to do this.
Code:
with_field.onkeydown = function(event){
associate_search.fill_list.down_key(event);
}
Where in another file I have this type of setup.
Code:
function associate_search (){
this.fill_list = fill_list;
function fill_list(){[code].....
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Mar 27, 2011
When I run the following code, the .Length function returns "undefined."
var strTest = 'test';
alert(strTest.Length);
Using the typeof function, I know that JS is treating the variable as a string.
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Jul 27, 2011
Here is a code I use to calculate distance b//w 2 places using google api. It works perfectly and shows the results in the html but when I add a return statement at the end of the function showlocation() it returns undefined.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "[URL]">
<html xmlns="[URL]">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<meta name="robots" content="noindex,follow" />
<title>Calculate driving distance with Google Maps API</title>
<script src="[URL]" type="text/javascript"></script>
<!-- According to the Google Maps API Terms of Service you are required display a Google map when using the Google Maps API. see: [URL] -->
<script type="text/javascript">
var geocoder, location1,addr1,addr2, location2, result1,gDir;
function coolAl(add1,add2) {
addr1=add1;
addr2=add2;
var result= return initialize();
showLocation();
alert(result);
} function initialize() {
geocoder = new GClientGeocoder();
gDir = new GDirections();
GEvent.addListener(gDir, "load", function() {
var drivingDistanceMiles = gDir.getDistance().meters / 1609.344;
var drivingDistanceKilometers = gDir.getDistance().meters / 1000;
result1=location1.address + ' (' + location1.lat + ':' + location1.lon + ')/' + location2.address + ' (' + location2.lat + ':' + location2.lon + ')/' + drivingDistanceKilometers + ' kilometers';
document.body.innerHTML=result1;
return drivingDistanceKilometers;
});
} function showLocation() {
geocoder.getLocations(addr1, function (response) {
if (!response || response.Status.code != 200) {
alert("Sorry, we were unable to geocode the first address");
} else {
location1 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
geocoder.getLocations(addr2, function (response) {
if (!response || response.Status.code != 200) {
alert("Sorry, we were unable to geocode the second address");
} else {
location2 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
gDir.load('from: ' + location1.address + ' to: ' + location2.address);
}});}});}
</script></head>
<body onload="coolAl('pune','mumbai')">
</html>
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May 11, 2011
<script>
// Declared Constants
MORSE_ALPHABET = new Array (
'.-', // A
'-...', // B
'-.-.', // C
'-..', // D
'.', // E
'..-.', // F
'--.', // G
'....', // H
'..', // I
'.---', // J
'-.-', // K
'.-..', // L
'--', // M
'-.', // N
'---', // O
'.--.', // P
'--.-', // Q
'.-.', // R
'...', // S
'-', // T
'..-', // U
'...-', // V
'.--', // W
'-..-', // X
'-.--', // Y
'--..' // Z
);
CHAR_CODE_A = 65;
var CTS = prompt('Enter Morse code','here')
var inMessage = CTS.split(' ');
searchLocation(inMessage,MORSE_ALPHABET)
function searchLocation(targetValue, arrayToSearchIn) {
var searchIndex = 0; // Iterative counter
for(i=0;i < targetValue.length;) {
targetValue = targetValue[i];
// Search until found or end of array
while( searchIndex<arrayToSearchIn.length && i != targetValue.length &&
arrayToSearchIn[searchIndex]!=targetValue) {
i++searchIndex++;
} if(searchIndex<arrayToSearchIn.length) {
return String.fromCharCode(CHAR_CODE_A + searchIndex);
} else {
return -1;
}}}
document.writeln(searchLocation(inMessage,MORSE_ALPHABET));
</script><head></head><body></body>
This is my code and I have figured it to create an array from the prompt and then use the function to return the first array it finds but I cant seem to make it go on to the next index of the array. I know that when you return a value the function closes and I have tried to store my return in a variable but its not working the way I want it to or I'm not writing the correct command or is there away to do multiply returns, I think what I need to do is simply but I have been staring at this screen for a while now and just cant see it.
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Jul 30, 2010
How would you go about writing a function that returns a string that outputs a branched bulleted list using <ul> and <li> tags of all the html elements in a page? The html elements don't all have id's or names, so I cannot reference them directly. I would like to do it recursively so that I can grab all the elements, not just those two or three levels deep.
[Code]...
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