I have to do a postback automatically when a user visit a page. How can I run this postback only once?
javascript:__doPostBack('dnn$ctr424$ViewLogin$btChange','')
I have created a XUL application, it has got a link for navigating to previous page. This is my link <a href="javascript:history.back();">Back</a>, unfortunately it is not working!!!
In firefox is working as expected, when I run it in XUL it is not working.
Any idea, why it is not working.
Thanks,
Rajeesh
What is the JavaScript equivalent to the following PHP code:
$expTime = time() + (5 * 60 * 60); // now plus 5 hours (5 hour; 60 mins; 60 secs)
$expTimeStr = gmdate('Y-m-d\TH:i:s\Z', $expTime);
Which JavaScript library is nowadays the best to use if you want to use the Comet Bayeux protocol on your website.
Definition of best for me:
Well documented and good examples !important
Nice coverage of the different functionalities of the protocol
Ease of use
Maybe a strange and green question, but
Is there anything C# can't do what javascript can...
And considering JQuery?
except for the fact that one is clientside, and the other serverside?
Or am I asking a very stupid question now?
I currently have a simple flash Mp3 player on my site which works lovely. The issue is, most cell phones do not support flash and a large portion of my visitors come through via a mobile device. The alternative to this is to replace the flash player with a javascript player. I found a JQuery one but it only works on HTML5 compatible browsers. Does anyone know of a good alternative that would work on mobile devices as well as most desktop web browsers?
Hi,
could someone recommend a PHP form validation library (that works independently outside of any php framework) that apart from doing all sort of basic validation (is empty, vs regex, is email, is alphanumeric and so on) can produce javascript code (ideally to work with jquery) to validate the very same form with the very same rules client-side and hence define validation rules in a single place and have a form validated both server and client side?
Thanks.
Having two strings (start and end time) in such form "16:30", "02:13" I want to compare them and check if the gap is greater than 5 mins.
How can this be achieved in Javascript in an easy way?
Hi there
Just out of curiosity I was wondering how is it possible for the javascript code to embed google maps communicate with server from outside domain. I know I'm missing out something here. can anyone help?
thanks
Please help~!
<HTML>
<HEAD>
<TITLE>Bra Size to Chest Size Converter - CM</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function CalculateSum(Atext, Btext, form)
{
var A = BratoNum(Btext);
var B = parseFloat(CuptoNum(Btext));
form.Answer.value = A + B;
}
function ClearForm(form)
{
form.input_A.value = "";
form.input_B.value = "";
form.Answer.value = "";
}
function BratoNum(str)
{
switch(str.toUpperCase()) {
case "32": return 70;
case "34": return 75;
case "36": return 80;
case "38": return 85;
case "40": return 90;
default: alert('You must enter a number between 32 and 40!');
return 'X';
}
}
function CuptoNum(str)
{
switch(str.toUpperCase()) {
case "A": return 4;
case "B": return 5;
case "C": return 6;
case "D": return 7;
case "E": return 8;
case "F": return 9;
default: alert('You must enter a letter between A and F!');
return 'X';
}
}
// end of JavaScriptfunctions -->
</SCRIPT>
</HEAD>
<BODY>
<P><FONT SIZE="+2">Bra Size to Chest Size Converter</FONT></P>
<FORM NAME="Calculator" METHOD="post">
<P>Enter Bra Size: <INPUT TYPE=TEXT NAME="input_A" SIZE=8></P>
<P>Enter Cup Size: <INPUT TYPE=TEXT NAME="input_B" SIZE=8></P>
<P><INPUT TYPE="button" VALUE="Get Chest Size" name="AddButton" onClick="CalculateSum(this.form.input_A.value, this.form.input_B.value, this.form)"></P>
<P>Your Chest Size is <INPUT TYPE=TEXT NAME="Answer" SIZE=8> inch</P>
<P><INPUT TYPE="button" VALUE="Clear" name="ClearButton" onClick="ClearForm(this.form)"></P>
</FORM>
</BODY>
</HTML>
I'm pretty efficient in jQuery, having implementing it in several projects for my company. However, I found myself a little lost when reading stuff like node.js.
Do i have to go back to basics and learn the javascript language or should i just stick with jQuery?
How can i create a cookie by using javascript just for end of the browser session(ie,upto closing of current browser).My script is like follows;
function setCookie(c_name,c_value,c_expiredays) {
var exdate=new Date();
exdate.setDate(exdate.getDate()+c_expiredays);
document.cookie=c_name+ "=" +escape(c_value)+
((c_expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}
setCookie('gs_cookie','firstme',1600000);`
How much value i need to pass instead of 1600000. Please help....
I have a nodejs TCP server and a client. Basic network communication happens. Client sends "data + STX_CHARACTER + data + ETX_CHARACTER" (just an example).
How do I split the string using the STX Control Character as a delimiter or how do I reference the character at all in Javascript.
Possible Duplicate:
Count number of matches of a regex in Javascript
How can I count the number of Leading spaces in a string. In this case it would be 4:
var s = " Hello World";
// ^^^^ <-- 4 leading spaces
For example,
<html>
<body>
<img id="pic" src="original.jpg"/>
</body>
</html>
In Javascript (jQuery):
$("#pic").attr("src","newpic.jpg");
Now, is there a way to reset #pic's src to original.jpg without explicitly setting it as $("#pic").attr("src","original.jpg");?
I've created a stock ticker function and need to call it every 2 minutes.
I've succeeded in doing this with the javascript setInterval function, but the problem is on the first call it waits 2 minutes before calling the function, whereas I want the first load to be called right away.
function CallFunction() {
setInterval("GetFeed()", 2000);
}
In Python I can use the iterkeys() method to iterate over the keys of a dictionary. For example:
mydict = {'a': [3,5,6,43,3,6,3,],
'b': [87,65,3,45,7,8],
'c': [34,57,8,9,9,2],}
for k in mydict.iterkeys():
print k
gives me:
a
c
b
How can I do something similar in Javascript?
Hello!
In my javascript i want to open URL in new window with this method:
var win = window.open(url...);
How can i check this, not to open the same window and lose all inputted data.
For example, if i opened "www.musite.com/addproduct" URL in new window, input data, leave my work place. then i click open window again, new window open and i lost all my data.
What neat ways do you use for declaring JavaScript namespaces. I've come across this one:
if (Foo == null || typeof(Foo) != "object") { var Foo = new Object();}
Is there a more elegant or succinct way of doing this?
Just a bit of fun...
I'm using a classical javascript prototypal inheritance, like this:
function Foo() {}
Naknek.prototype = {
//Do something
};
var Foo = window.Foo = new Foo();
I want to know how I can improve this and why I can't use this model:
var Foo = window.Foo = new function() {
};
Foo.prototype = {
//Do something
};
Why this code doesn't work? In my head this is more logical than the classical prototypal inheritance.
How can i achieve http://jdstiles.com/java/angledtext2.html this kind of angle(slant) using html , css and javascript. In design we have tabular structrer and by clicking on a tab the area beneath should refresh without reloading page (some thing like jquery or ajax).
I'm doing some research for a JavaScript project where the performance of drawing simple primitives (i.e. lines) is by far the top priority.
The answers to this question provide a great list of JS graphics libraries. While I realize that the choice of browser has a greater impact than the library, I'd like to know whether there are any differences between them, before choosing one.
Has anyone done a performance comparison between any of these?
I work in Javascript with integer numbers only (mainly adding numbers and shifting them). I wonder how big they can be without loosing any bits.
For example, how big X can be such that 1 << X will represent 2^X ?
I got the Wrox.Beginning.JavaScript.3rd.Edition and wanted to start learning it from scratch, then my boss came along and said that why bother, learn jQuery.
Can I understand jQuery and work with it although I am a newbie and have limited knowledge in ASP.net, vb.net, some C#, and basic HTML?!