Testing For CSS3 Capabilities
Mar 27, 2011
Is there any way to detect through Javascript whether a browser supports a particular property of CSS? I am experimenting around with CSS3 and I would like to be able to detect whether the browser understands what to do with a particular setting, as in "elementRef.style.newCSS3_property = '3px' " I have heard, although I do not know if its true, that there is some way to access whether the browser knows what such a declaration means.
Does anyone out there know how to do this?
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Aug 4, 2011
is there any way to detect if a browser has SVG capabilities? It would be great if I good give some sort of message such as "Try using Firefox".
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Jul 3, 2011
Onchange of the dropdown list, the textfield should display either "testing 3" or "testing 4" but nothing is happening.
<form action='submit.php' method='POST' name='form'>
<select name='preset' onchange='preset(this);'>
<option value='test1'>testing 1</option>
[code]....
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Aug 8, 2010
is it possible to animate eg. -moz-transform: rotate(90deg) ?I tried something like:$('div').animate({ '-moz-transform': 'rotate(90deg)', '-webkit-transform': 'rotate(90deg)', '-o-transform': 'rotate(90deg)' }), but it didn't work.$('div').css( ... ) of course works.
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Aug 8, 2011
I'm working on a website for a client and we've decided to use CSS3 instead of Flash for multiple reasons, compatibility with mobile devices being the main. However, there's a lot of animation on the page such as fading, positioning and opening/closing and it seems to be tripping over itself attempting to process everything.
I've created an animation class that schedules all of the animations so that there's only one setTimeout running for those animations at any given time. I've also set it up so that any web browser capable of CSS3 transitions use those instead of the JS animations. The animations lag in both CSS3 and JS functionality, although the CSS3 is slightly better.Some animations lag even if they're the only animation running. For instance, trying to fade a full-screen image in/out chugs even on test pages I've created only containing the one function.
I understand that Flash uses hardware acceleration and has optimized rendering, and the reason the browser is lagging is most likely because it's all being processed unoptimized and through the CPU. However, I'm sure there must be a way to make this site smoother than it is.I'm posting here because my deadline is coming hard and fast, to ask for assistance with:Tips on how to optimize my code to run smoother in JS and/or CSS3.how to be able to fade large images/areas with less lag.I've been trying to move most of my code into OOP as I've gone along, but some functions are still a bit "spaghetti" due to my time crunch.
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Aug 2, 2011
I'm trying to get cross-browser column support working using the "css3-multi-column.js" script included in the following tutorial:
[URL]
The javascript works, making columns when the site is loaded in Firefox but I keep getting "access denied" errors for the ""css3-multi-column.js" script in Internet Explorer 8, resulting in no columns. I tested the tutorial's example in IE 8 (worked fine), then referred to the tutorial's example time and again checking for discrepancies but I can't seem to figure out where I'm going wrong.
Here's an example on my site where columns are to appear:[URL]
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Mar 10, 2011
I have an animation that I want to animate in from the right side of the screen and I have it moving in fine, but I can't figure out how to get it to stop. I tried using setTimeout but cant get it to stop.
[Code]...
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Sep 13, 2010
I have tried this without success:
$("@font-face").css("font-family","myCustomFont");
$("@font-face").css("src","url('myFontLocation')");
trying to emulate the expected CSS3 statement:
@font-face {
font-family: "myCustomFont";
src: url("myFontLocation");
}
Is this possible? If so what is the exact syntax?
Searching found no clear answer, though I ran across Cufon and similar libraries, but I would rather stay in jQuery if possible.
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Jul 16, 2011
I know CSS3 is at the stage now where we can use this feature comfortably across all modern browsers, but what else can be done via Javascript/Jquery to create our ever-so beautiful rounded corners ? Im trying to achieve a fairly consistent look "cosmetically" in all my sites going back as far as IE 7...For example my second site Ive built PAT Tester providing PAT Testing in Birmingham Worcester Bromsgrove Redditch Dudley Worcestershire West Midlands utilises CSS3 and looks ok in the modern browsers, but go back to IE8 and "yuck" its all squared out maaaan....!
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Jun 9, 2010
I know it would have usability issues but it would be a nice extra for a site I'm building. Circles placed around the page that could do any or all of the following:
1) fade in and out
2) grow and shrink
3) change colors
4) move around
And all without having to mouse-over. If not with CSS perhaps javascript?
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Nov 7, 2011
This is the site: [URL] And the attached javascript: [URL]
Now Begin and Contact are fine, but as you can see, the Einde part isn't sliding in. I'm hiding my "Second" div at the end of the transformation to avoid horizontal scrollbars. But after I show it again, to slide it back to the left, the transformation somehow doesn't work.
If I comment out the slide-to-left transformation, the Second div shows on the right, with horizontal scrollbar. So it does actually do the transformation, but doesn't seem to do the slide. I've also tried re-setting the -webkit-transition property again after I show() the Second div, to set a delay on it again. However, this had no effect either.
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Nov 30, 2011
I have problem with using very smooth jquery animate. I need to zoomIn Images with effect depth and walking into image. When i'm using css3 with animation and scale everythink looks like ok, the animation is very smooth but when i using css2 with jQuery animate thats look not good,
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May 22, 2011
I'm working on a project where i have a div in which i dynamicaly load some text.
No problems yet.
Trouble is, the width and height of the div is limited.
So in order to show long words (over 16 characters long) i need to break up the words.
CSS3's new "word-break"-property enters the arena.
Now the real problem shows it's ugly face.
When passed by jQuery's .css()-function, no "word-break" appears in the HTML.
The problem seems to lie with jQuery, since it works on jsFiddle.[code]...
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Oct 4, 2010
How can I animate this car: driving from left to right of the screen? I imagine it starting on the outside of the wrapper border so top left 0 and ends top right 960px... When it hits top right corner can it then flip 180 degrees and drive back in the other direction? Also how can I do it in jquery for the browsers that don't support the CSS3? I was also wondering if you click on the car could some flames shoot out the exhaust which makes it drive faster??
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Jul 23, 2005
Is there any way to test for the presence of the Adobe Acrobat plug-in
in Internet Explorer? It's doable in Netscape but so far I cannot get
it to work in MSIE.
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Mar 9, 2006
I'm trying to get JSUnit to work - I've tried everything I can think
of, but I can't get the simplest of tests working - example 1 of the
jsunit homepage - Both on my server and locally, nothing happens after
clicking run - or if I'm lucky, a window pops up, blank, other than the
heading "Tracing - JSUnit".
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Jul 16, 2009
i wrote a rough script to try and test which method of incrementation was faster: i+=1; i++; ++i;
[Code]...
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Dec 4, 2010
I had a rethink about my problem discussed in this [URL] thread, where the function won't run properly a second time if the page hasn't been reloaded. That one appears not to have a solution, and I was thinking that a reasonable plan B is the following:
a) test if the function has already been run since the page was loaded
b) if not, run the function
c) if it has, reload the page with the onClick, then run the function automatically on reloading.
the problem I envisage is will the page "remember" to run the function once it has been reloaded?Of course, it would be simpler to do it running the function automatically once the page loads, then just reloading if the test comes back that the function has been run already, but that wouldn't work for the first time you visit the page - it would start running straight away, whereas I want it to wait for that first click. Here's the page [URL] I'm working on, if you want to have a look.
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Jul 12, 2005
I was putting some javascript in a form and doing my usual testing and swearing when the javascript did not run without an error message of any type and reverting the code back until it did run and adding code til it didn't.
Then it hit me - isn't there a better way - doesn't someone have a program or utility that will help debug Javascript ???
As I'm doing Javascript it is much harder to decode than the 30 year-old Fortran programs - they typically gave a line number and variable name that was missing.
When I did Basic before Visual Basic, the editor identified errors in real time as we typed. What is available for Javascript?
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Jul 23, 2005
If I have to test my code on different Netscape versions, can I download and run those versions on the same computer or will it create conflicts? And if I had to test only one version which one should it be - which one has the most common elements to all the versions?
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Jul 23, 2005
I am trying to check if my new window is open and if it is change the url.
This works until I use the x in the corner to close the window. At that
point i get an error when i try to open the window again. I believe that it
is because newWindow is still active. How do I close newWindow when it is
unloaded or closed by the x. If this is truely the problem.
function openWindow()
{
if (typeof (newWindow) == "undefined" || newWindow.open == false)
{
newWindow = window.open("http://www.yahoo.com","","width=400,height=400");
newWindow.focus();
return false;
}
else
{
newWindow.location.href = "http://www.msn.com"
}}
Here's my solution, seems a little redundant though.
function openWindow()
{
if (typeof (newWindow) == "undefined" || newWindow.open == false)
{
newWindow = window.open("http://www.yahoo.com","","width=400,height=400");
newWindow.focus();
return false;
}
else
{
newWindow.close()
newWindow = window.open("http://www.msn.com/","","width=400,height=400");
newWindow.focus();
return false;
}}
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Jan 15, 2007
In this piece of code (common to a number of pages) I want to set focus to a second input field if there is one.
[Code]...
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Sep 2, 2009
determine what the first letter of a selector is? For example, if the very first letter of a paragraph is a quote (or a ‘ , or a “ , etc) I would like to apply a negative text- indent to the found paragraph so as to replicate "hanging quotes" that are commonplace in the print world. The code I've come up with is: $("p:contains(“), h1:contains(“), h2:contains(“)").css({'text- indent':'-0.3em'}); but this grabs any p or h1 or h2 that *contains* an opening curly quote; not what I'm looking for. I need it to select paragraphs that *start* with the opening curly quote. Incidentally, I could not get this to work when I was searching for $ ("p:contains(“)... but it worked when I entered an actual opening curly quote in the search (as above top). I tried both single and double escapes too.
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Aug 2, 2011
jQuery - slideToggle, testing if up or down
I have a simple slideToggle that slides a sub menu up and down
Code:
$('a#btn-portfolio').click(function(){
$('#sub_menu').slideToggle('slow');
});
[Code]....
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Mar 10, 2004
does anyone know how I can test, in javascript, which of several buttons was pressed when submitting a form? Currently, I use the onSubmit event handler to call a form validator function, and it is in that function which I would like to test which submit button was pressed. Anyone know?
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Sep 27, 2006
Is there any way to test if there is overflow in a text area (i.e. a scrollbar is displayed)? This is a read only field so I could change the textarea to a div if necessary.
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