Have searched this forum thoroughly as well as googled it, but no luck in understanding why the following simple code does not work:
Code:
function changeSelect(){
var id = $(this).attr("id");
[code].....
I'm doing something with grails + jquery. My controller send a rendered json (which I know is sending correctly) but when the object "arrives" in the callback method it comes undefined. I can see it lenght, but not it's content.
[Code]...
I have to use scrollTop and scrollHeight properties, but on jQuery object it returns `undefined`.
Is there any method to get this property from jq object?
It doesn't matter, but my object looks like this:
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) {
$.ajax({
type: 'GET',
[code]....
I have a homework assignment which is pretty simple. It is a grade calculator that uses arrays to gather the grades from the user. This is what I have for the problematic section:
var homework = new Array(2);/* The grades entered by the user for Homework 1, 2, and 3 */
var project = new Array (3);/* The grades entered by the user for Project 1, 2, 3, and 4 */
[Code].....
My problem is the document.write portion of the code, where it is supposed to return either homework[0], project [0], or exam[0], it instead returns undefined. There is no problem with any other subscript. And yes, it does successfully prompt me for each of the [0] subscripts in the first part of the code. Am I just missing something that is right in front of my face? Does all arrays not start with the [0] subscript?
I have a following string:
var myHTML = "<html><body>testing hope this work in html</body></html>";
alert($(myHTML).children("body").html());
Why does the alert return NULL, instead of "testing hope this work in html" ???
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?
Shouldn't history.previous return an url address of previously visited web site???
I used this code in my web page: <body onload="alert(history.previous+''+window.history.next)">
then I visited some web sites and went back, but the code always returns undefined, although there are URLs of the previous and next pages visited .
I am trying to access the width variable from my main page. Within the imageinfo.js script functions I can alert() the width value which returns 1024. But I can't seem to pass this variable to my main page or access it directly so that I can use document.write() to write the variable on the page. Whenever I try to call the 'width' variable directly from the main page I get undefined. How can I access this variable? However, with the test code below, I was able to get ducument.write() to write the 'width' variable on the page but now the page doesn't stop loading - there's an endless loop in the code...
Code:
BinaryAjax(url,function(http) {findEXIFinJPEG(http.binaryResponse);test(width)},null,useRange ? [0, Range] : null);
Main page
Code:
<html>
<head>
<script>
function test(width){
document.write('Image Width = ' + width)
} </script>
<script type="text/javascript" src="binaryajax.js"></script>
<script type="text/javascript" src="imageinfo.js"></script>
</head>
<body>
<script type="text/javascript">readFileData('image.jpg')</script>
</body>
</html>
Imageinfo script - This script uses the binaryajax script found below.
Code:
/*
* ImageInfo 0.1.2 - A JavaScript library for reading image metadata.
* Copyright (c) 2008 Jacob Seidelin
*/ .....
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.
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>
I'm new to ajax. I've made a script that should return results from database but it keeps telling me just undefined. Code what I have:
Code:
var ajax = null;
function showRes(wut) {
if(wut.length == 0) {
document.getElementById("results").innerHTML = "";
return;
} if(window.XMLHttpRequest) {
// IE7+, ff, chrome, opera, safari
ajax = new XMLHttpRequest();
}else if(window.ActiveXObject) {
// retards
ajax = new ActiveXObject("Microsoft.XMLHTTP");
} else {
alert("Your "browser" does not support AJAX!");
return;
} var url = "search.php?q=" + wut;
url = url + "&sid=" + Math.random();
ajax.open("GET", url, true);
ajax.send(null);
document.getElementById("results").innerHTML = ajax.reponseText;
}
I am just trying to figure out how to do some different things with the for...in loop and jQuery, but now I'm wondering if this is even possible. I made a simple example to test:
function tellMeHeights(){
var allDivs = $.makeArray('div')
for (mydiv in allDivs){
height = $(mydiv).css('height')
alert(height)
}}
But this doesn't work - the alert box just says 'undefined'. Is it possible to iterate jQuery objects like this, or should I be using something else like .each?
looking for some help regarding responseText, so please have a look :) im so mad right now because i have been struggeling for hours :(XMLHttpRequestObject.responseText returns correct value when i do alert(XMLHttpRequestObject.responseText); see linevar fnWhenDone = function (XMLHttpRequestObject) { alert(XMLHttpRequestObject.responseText); };But problem is that i want to save down the response to a variable... so i try to change it into var fnWhenDone = function (XMLHttpRequestObject) { varTest = XMLHttpRequestObject.responseText; };When i try to alert varTest later i get "Undifined"... im pretty new to javascript and have been stuck for hours ...See full code below
var myConn = new XHConn();
if (!myConn) { alert("XMLHTTP not available. Try a newer/better browser."); }
var fnWhenDone = function (XMLHttpRequestObject) { alert(XMLHttpRequestObject.responseText); };
[code].....
When using the code below the alert returns a value of null. In the past this has never happened, it has always returned the xml file I'm requesting. I have noticed a strange difference between browsers. This script is used to fill a form automatically. In its current state it works perfectly in opera, but does not work in firefox or IE (used to work in all the browsers). I'm by no means a javascript expert, am I missing something here?
[Code]...
Since upgrading from 1.4.x to 1.6.1 all the code that selects the contents of an XML attribute by the name of 'value' has stopped working. Upon investigation, any time you do
$(someXMLObject).attr("value")
now always returns 'undefined'. This worked fine in previous versions and currently is preventing us from upgrading. I know the obvious solution would be to change the attribute name from 'value' to something else, but this would require some real effort on our part as a lot of our front end code is assuming an attribute of 'value' be passed in.
My question is, is this bug likely to be fixed in a forthcoming release of JQuery or should we implement the necessary workarounds on the assumption that this isn't being worked on?
I need an html page that when visited automatically redirects the browser to return to the previous page it was on. here is the current code I have:
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>[code]....
this works in firefox but in IE you have to press ok in the alert box before it returns. I admit I am a javascript novice. Any suggestions
Getting undefined alert.[code]...
View 1 Replies View RelatedI have a simple form here with a function to validate it, but I have no idea where I'm going wrong. I'm very familiar with ActionScript and C++, so I get the coding aspect of it, but one thing I'm not familiar with is how exactly JavaScript and HTML communicate. The problem is that this form always submits, even if my function returns false...but I can't even see if it returns false anyway, because alert() doesn't seem to be working either.
Here's what I have for my HTML:
I have a problem that 'test' is not passed. The following function alert undefined, but it should alert test. Why that?
View 1 Replies View RelatedThis routine used to work when I was using jQuery 1.3.2. Now that I've switched to 1.4.2 it fails. I've verified that returning to 1.3.2 fixes the problem.
I have a page which includes this select pulldown:
<select
name
="template"
id
[Code]....
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]....
In the below code, the alert message returns in one instance: 'someAnimal is [Mammal "Mr. Biggles"]' I don't understand how this is possible. We pass as an argument 'Mr. Biggles' to the Mammal constructor. Then assign it to the object name property. But then it ends there. There is a function called toString which will return the alert. But the toString function is not being called like this: alert('someAnimal is '+someAnimal.toString()); If it was like how it is above, it would make sense to me but now it makes no sense to me because I don't see where that toString() is being called - I only see that it is prototyped to the Mammal object.
Code:
function Mammal(name){
this.name=name;
this.offspring=[];
}
Mammal.prototype.haveABaby=function(){
var newBaby=new Mammal("Baby "+this.name);
this.offspring.push(newBaby);
[Code]....
heres my code:
Code:
<script language="JavaScript">
var checkobj
function agreesubmit(el){[code]....
i need to make it like if the button is clicked and there the agreement checkbox is not checked.. it should give an alert that the alert is not checked.. i know that would require a if and else statement but i cant figure out how to do it
i am facing a problem after using jquery jconfirm alert. Issue is that after receiving confirm alert, when user press tab to go on Cancel button and press Enter key there, despite of firing event of Cancel button, it fires the event of OK button. this issue is not produced when user press the cancel button by mouse. Waiting for your replies.
View 1 Replies View RelatedI am trying to throw an alert with the attributes of a submit button in the alert.
What am I doing wrong?