I would like to be able to take some action (implemented in a
function) when a property is assigned a new value (much a page is re-
rendered when, for example, a style is changed). So if I do ...
myObject.myProperty = 5;
I want myObject.myFunction to be called. Is this possible at all?
I have this code:
HTML Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
[code]....
The practical scenario is I have several functions attached to the jQuery ajaxSucess event. Each function needs to execute once during initial load and after when the JQuery ajaxSuccess event is fired. So I am just looking to see if I can eliminate a a few lines of code and learn something new in the process, that is really all.
- Create a function that prompts user for a number.
- Develop the program so that it continues to prompt until it receives valid information.
- Then create a multiplication table that displays the number multiplied by 1 through prompted number.
How to get the function to work.
When I click on a link I have this event:
$.ajax({type: "POST",
url: "/req.php",
asynchronous: false,
dataType: "xml",
[Code]......
The php file check the "op" and call a function that return true (if the query is ok) or false (if the query is not ok). What I have to do to test this value? I mean....jQuery make the sync call, call the php script that run a INSERT query. I need to test in jquery if this QUERY was correctcly lanced. I try with the code above but I can understand that the success parameter is only for the good call of the php script, not for the response.
I have an ajax post which returns a large html response. It is getting truncated at 98784 characters everytime. Is there a limit to a response size or a way around this?
Using: IE7
jQuery 1.4.2
jQuery UI 1.8.1
Here is my ajax call:
function refreshWindow ()
{
if (xmlHTTP)
xmlHTTP = null;
[Code].....
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.
I have Javascript code that looks like this:
var data1;
$.post('save_search.php', formData, function(data) {
data1 = data;
});
jsonData = eval('(' + data1 + ')');
if (jsonData.return_status.search("successful") > -1)
$('#msg_div').html("<font color=red>Search was saved</font>");
else
$('#msg_div').html("<font color=red>Search was not saved. Try saving again.</font>");
"data1" comes up as undefined in the statement
jsonData = eval('(' + data1 + ')');
Even though "data" is a perfectly correct JSON string *inside* the callback function! I can put the eval statement inside the callback function and it will form a good JSON object, like this:
jsonData = eval('(' + data + ')');
I'm simply trying to get my Ajax response data to the outside of my callback function so I can use it in other Javascript code. I've never seen an ordinary function behave this way.
I am having difficulty with the isNaN built-in function. Here is the code that I have written, with the event handler onchange, the function does not return the desired response.
CODE:
Here is an example of the event handler code...one of three calls to this specific function...
<input type="text" name="zip_billing" size="5" maxlength="5" onchange=" return checkNumber(this.value);" />
Some of the object properties in the Dojo Toolkit are set to objects but they are using syntax like this:
object.property = new function() {
this.property = someValue;
this.property = someFunction;
}
Is the property set to a new object and if so what is the "new function()" statment doing?
I am using jquery.ajax() to make a POST call to web server which returns HTTP 201 response for successful creation of object at server. Since 201 is a success I expect the success function specified with jquery.ajax to execute but instead it executes the error function specified with jquery.ajax. Here is how I am using jquery.ajax call.
[Code]...
All I really need is confirmation for this, but is this:
var variable1 = variable2 = variable3 = value;
The same as and just as legal as this?
var variable1 = value;
var variable2 = value;
var variable3 = value;
I have an HTA I built for essentially email generation with tie-ins to our CRM here. I'm trying to make a section of the HTA do a Show/Hide style interaction. Ergo, if the section is relevant, click show to show the modifiable parameters, etc., if it's not, leave it hidden. I got this to work with hyperlinks but wanted to change it to an input button so when I'm processing the values, I can check if the sections is "instantiated" and if so, process; if not, skip. The weird thing is, I'm alert()ing on the reported value AFTER I set it and it is reporting as correct, it's simply not showing correctly in my HTA. Javascript:
Code:
function HideContent(d) {
document.getElementById(d).style.display = "none";
[code]....
I'm writing a script that dynamically generates a menu table. Each TD has an onclick property which serves as a link. Everything works properly in other browsers since setAttribute onclick works. However, this function does not work in IE, and you're supposed to do this instead:
elementName.onClick = "blah";
Here's my code that works in all browsers but IE:
Code:
var truePath = "document.location.href=" + "'" + "/" + urls[i] + "'";
cell.setAttribute("onclick",truePath);
cell.onclick = truePath;
For IE, if I set the cell.onclick value to truePath, nothing happens when I click on the menu. However, it works fine in Firefox and Opera because of the setAttribute function. How I could get this to work in IE? My script is complete besides this part... I hate IE. Why can't they follow the rules?
I'm using this function to change the display property of one field based on the input (value property) of another
Code:
function disableField(owner,reason) {
if(document.getElementById(owner).value == '000001' || document.getElementById(owner).value == 'None' ||
[code]....
The goal is for selectedDay to be assigned the value of the system variable Mainpackage.subclass0.subclass1.firstDay and then incremented by two days. Mainpackage.subclass0.subclass1.firstDay needs to be unchanged.
Important system variable in red. To be 'manipulated and used' variable in green. Even with an intermediary, third, dummy variable it doesn't work:
Console log is:
It doesn't work in my webapp : All variables change at the same time.
I am new to Javascript but fluent in C++ and other languages, I have a query, I made a global variable to hold string information, can the value of this string be assigned to a form input field value? I mean in the 'default value sense' I am just wondering if there is any syntax to accomplish this. EG in my javascript I have the string nameVal; It is a global variable, I would like to know if it is poosible access its value for use in the line below shown with italics, or is it basically always a case of 'type the value in manually yourself' and then rely on events functions to update the field thereafter?
Name: <br><input type = "text" name = "nameField" size = "50" value = my string val here onChange ="this.value=storeVal(this.value, '0')"></input></br>
I am currently writing code to populate a select tag with all the hours of the day. I recently rewrote a function that will populate a temporary select tag based off a time passed in as an argument and then return the temporary select at the end. When I attempt to assign the product to a variable, Javascript gives the error "Invalid Assignment on left-hand side." Have I stumbled onto one of the cases where you can't directly assign variables to each other, or is this a syntax error?
This the line that is giving me an error
eval(select1) = newHours('000');
Where select1 is a variable that contains the name of the day and a number, both of which change depending on input, hence the eval statement. The function newHours returns a temporary select.
I see that the cluetip plugin project is on github so, perhaps at some point I'll be able to try implementing this feature myself, and submit a pull request. My team is using the cluetip plugin in a rather exceptional way. Rather than a tooltip like msg bubble that appears on mouseover, we show the cluetip on page load and require the user to dismiss it. We're using these cluetips to communicate new features on our site. After looking at available jquery plugins, cluetip seemed to be best suited for this use (all be it, a rather exceptional use).
The current design allows for this use with just a bit of css work but it limits us to one cluetip visible on a page at a time. Multiple cluetips are not possible because the cluetip div container has a non-unique id and the jquery id selector is used in the plugin code (which means that only the first cluetip in the DOM is ever referenced by the code). I'd like to extend the code to allow for dynamic assignment of the id on the cluetip container which would allow us to render multiple cluetips on the page. Perhaps, this might constitute a new plugin, since this isn't really the intended use of cluetips.
There's a box INPUT[code]...
and the corresponding line of [code]...
Everything works with a bang. However, now we need to pass a string out of 2 INPUT values(input name="name" and input name="last"), ie [code]...
What happens if you do this?
function Person() {}
Person.prototype = 7;
var ted = new Person();
Also what happens if you set Person.prototype to an array or function?
I am trying to assign some value to text filed using jquery.
I am using this code.
Its giving me this error (invalid assignment left-hand side)
If i use this simple statement
This works..
How to assign value to an input filed using jquery.
I have a webpage(with a text field and a button) which prompts for a
local file and attempts to load the file in the window if the user
clicks on the button. The javascript code onClick event uses the
location.href property to achieve the desired result. (This loaded
page has some additional functionality which lets them upload the
contents to the server.)
This approach only seem to work for some computers and on others it is
loading a blank page. I have alerts in the code to show that
location.href is correctly reflecting the file location after the
assignment. When it is loading the blank page I see the message
"Opening page about:blank" on the status bar. Iam currently using IE6
sp1 on Win2k. This issue is not just limited to this combination. We
are experiencing issues with IE5.5, WinXP as well.
The code works if I pass a web site address. It only fails if I
attempt to pass a file name(c: est.htm)
Any thoughts on why the blank page is being loaded or how can I go
about resolving this issue.
For my web assignment we have to put in interactive elements into our web pages. The one I'm having trouble is a confirm button for a form, (it doesn't send any info as we have not been taught any php or any form of server side scripting yet). What I have want the button to do is to check that all feilds have been entered info if they then thank the user and close pop up div, if not request the user to enter info into all fields.
My code does sort of I want but doesn't thank the person if it is all filled instead it says please enter info into all feilds and then closes.
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]....
Just playing around with xmlhttp at the moment. I was just wondering if
there is any reason (browser compatibility etc) the response data has to
be formatted in xml, or can I send csv or whatever else if the handler
is up for it?