i need to trim a string to its first 100 characters using jquery/javascript.
also is it possible to scan a string and look for a particular combination of keywords such as #key?
thanks a lot for the help.
I have asp:Table with number of asp:Label inside asp:FormView, it represents short stats info.
I need to set Label.CssClass to "red" if it's text isn't "0".
Currently I do this on FormView.DataBound event. But think that it's better to use JavaScript and probably jQuery. How can I do that?
Can't believe how difficult this seems to be all I want to is to validate a user inout using javascript to make sure that it is an email address. But can't get it to work:
I am using:
//validates a regulaer expression
Utilities2.prototype.validateEmail = function(stringToValidateArg)
{
alert('about to check regexp');
var regExpPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
alert(regExpPattern.test(stringToValidateArg));
}
But this always returns false, any ideas why is it because of the regular expression?
I'm trying to run .ajax and insert a data element from the onClick of an item from the page. Whats the best way to do this?
Something like this:
function grabinfo(foo){
$.ajax({
url: "infospitter",
method: "GET",
data: "id="+foo,
success: function(html){
$(#showstuff).html(html);
}
});
}
<input onClick="javascript:grabinfo(18343)" />
// and on page each item will have this button input
I have a Javascript Object like
var obj = {
key1: 'value1',
key2: 'value2',
key3: 'value3',
key4: 'value4'
}
How can I get the length and list of keys in this object.
Is there a library that can be used for implementing undo/redo functionality for DOM element manipulations in JavaScript?
I'm writing an app that moves around DOM elements, enables editing and deletion of those elements. There are event-handlers and other objects associated with each element operated upon.
Not sure whether I need to roll my own implementation of the Command pattern for this. Surely, there must be something available? If not, suggestions and pointers would be a great help.
Hi,
I want to display a "Go to top"-Link on my website.
This link should only be visible, if the vertical scrollbar is visible.
How can I do this using JavaScript?
Thanks
I am developing some JavaScript that should work with either Prototype.js or JQuery, thus I need some way to identify what is the primary library in use. How can I do that?
Hello!
Is there a way to kill the unload function with javascript(jquery)?
I am looking for something like this:
window.onbeforeunload = function(){
confirm("Close?")
}
or in jquery:
$(window).unload(function() {
confirm("close?")
});
Now, on window unload I get my confirm alert but it will continue in any case. Clicking cancel it won't stay on my page.
Can U help me plz?
Hi
I want to have a drop down menu where a user can select from several predefined options but i also want to give him the option of inserting a user specific value, i was thinking having one of the options as "user specific" which will in turn allow the user to insert a user specif entry in a text box that appears or is editable when user selects the "user specific" option. any one have any ideas how i can implement this is HTML and Javascript?
thank you
Hi,
I have seen some captchas being decode using javascript, php, etc. How do they do it?
For example, very popular megaupload site's captcha has also been decoded.
My javascript looks like the following. I don't understand why these methods are all public though?
Something.RegisterNamespace("One.ABC");
(function(ABC) {
ABC.SayHello = function() {
alert('hello');
};
})(One.ABC);
So now I can do:
One.ABC.SayHello();
I want to check the performance of the gzip decoding speed in a web browser.
In the Java or c#, we can easily check the gzip decoding time.
But I can not measure the decoding time in the web browser.
plz help me.
I want to check some decoding speed of gzipped html files.
With JavaScript can I measure the performance.
Hi,
I am using a third party library that provide some callbacks for a widget, but I'm not sure what the callback parameter objects are (no docs on them).
Is there a way to just dump all the attributes of an object in javascript, then print them using alert(), maybe? I just want to see what methods and attributes they contain,
Thanks
My firefox downloads the JSON response of an AJAX call as a file.
It's suppose to be handled by the JavaScript i.e. JSON object.
Can anyone explain how to stop this behavior or there is something I am missing.
Thanks.
Hello,
I'm experiencing something really strange with my javascript in chrome with Date().format.
If I use the console and type:
d = new Date(Date.parse("2010-05-28"))
d.format("yyyy-MM-dd");
""
d._toFormattedString();
"Fri May 28 2010 00:00:00 GMT+0200 (W. Europe Daylight Time)"
Anyone got any clue why I get an empty string? And it's only in Chrome, didn't happen in Chrome 4, and it doesn't happen in IE8/Firefox3.5
i have a parent window and a child window. in javascript, i want a function in child window to be called whenever the parent window loads a new page. i'd like to use something similar to jQuery's $(document).ready() so that I don't have to worry about whether the parent is done loading yet - but ready() only appears to fire when the window loads the first page - but not when, say, a link is clicked in the parent and it loads a second page.
any suggestions? thanks.
I am developing Javascript app that will wrap every line of text entered inside iframe (designmode) with P (or div) like it happens by default in IE.
For now I am not pasting my code because I just started, the first problem is when i type some text in firefox and even before I click enter or calling any function firebug inserts
<br _moz_dirty="">
under the entered text.
Why? How can I prevent it?
If you still need my code please tell.
Hello,
I have a div element in HTML document.
I would like to extract all elements inside this div that starts with a known text (e.g. "q17_").
How can I achieve this using JavaScript ?
(If needed, for simplicity, I can assume that all elements inside the div are of type input or select.)
Thanks !
Hello fellow front-end web h4X0|2s,
I was wondering if anyone had any resources, proof, or personal experience in using the age-old http/https JavaScript hack:
<script src="//someserver.com/js/script.js"></script>
Has anyone encountered issues in any of these browsers (IE 5.5+, FF2+, Chrome, Opera 9+, Safari 3+)? Has anybody had success stories?
Thank you for your help.
I see examples where JavaScript code including jQuery and jslint use the notation below:
(function(){
// do something
})();
instead of:
// do something
I first thought this is just for local scoping, i.e. creating local variables for the code block without polluting global namespace. But I've seen instances without any local variables at all too.
What am I missing here?