Changing the css color every second [duplicate]

Question

Possible Duplicate:
How to loop a css background image with Jquery every few seconds?

I'm wondering how to achieve a simple "animation" effect of colors changing every second and if there is a way to animate the animation it can be even better.

I have just tried something like:

$('.box').delay(1000).css("background","red");

And it doesn't work at all (the delay function isn't working).. anyways i need like two of them:

$('.box').delay(1000).css("background","red");
$('.box').delay(1000).css("background","green");

So that it becomes red -> wait a second and becomes green -> becomes red again..

Is it possible? thanks!

stackoverflow.com/questions/1374867/… <— perhaps this question can help? — andrewdotnich
– andrewdotnich, Commented Dec 15, 2011 at 22:32

atmacola · Accepted Answer · 2018-09-24 14:09:18Z

10

$(document).ready(function() {
    setInterval(function() {
        $('body').animate( { backgroundColor: 'red' }, 300)
            .animate( { backgroundColor: 'green' }, 300);
    }, 1000);
});

http://jsfiddle.net/theSifter/yR6jc/

edited Sep 24, 2018 at 14:09

atmacola

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answered Dec 15, 2011 at 22:39

Damen TheSifter

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Comments

danludwig · Accepted Answer · 2011-12-15 22:31:20Z

3

setInterval(function() {
    var box = $('.box');
    if (box.css('background-color') == 'red') {
        box.css({'background-color':'green'});
    }
    else {
        box.css({'background-color':'red'});
    }
}, 1000);

answered Dec 15, 2011 at 22:31

danludwig

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2 Comments

Ricardo Over a year ago

Is there any way to loop the color changing? Now it works but it changes once and that's it.

danludwig Over a year ago

You could loop, but there is no way to tell the javascript engine to relax and update the user display without setTimeout or setInterval. A loop without setTimeout or setInterval will just crash the browser (eventually).

Chris Fulstow · Accepted Answer · 2011-12-15 22:41:20Z

2

<h1 id="ho">Ho ho ho!</h1>
<h2 id="mc">Merry Christmas!</h2>

<script>
    var flag = false;
    setInterval(function() {
        flag = !flag;
        $("#ho").css("background", flag ? "red" : "green");
        $("#mc").css("background", flag ? "green" : "red");
    }, 1000);
</script>

answered Dec 15, 2011 at 22:41

Chris Fulstow

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Comments

Leto · Accepted Answer · 2011-12-15 22:30:48Z

1

I think you have to use the javascript setInterval method :

See here: http://www.w3schools.com/jsref/met_win_setinterval.asp

so:

setInterval(function() {
// Code to execute every second
}, 1000);

answered Dec 15, 2011 at 22:30

Leto

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2 Comments

stecb Over a year ago

w3fools.com maybe?? ;)

Leto Over a year ago

Maybe somethings could be wrong there, but the example i saw wasn't..

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