Question

I need to “animate” a variable with jquery.

Example:
The variable value is 1. The value should be 10 after 5 seconds.
It should be increase “smoothly”.

Hope that you know what I mean.

Thank you!

Answer 1

What you require is the step parameter in the $().animate function.

var a = 1;
jQuery('#dummy').animate({ /* animate dummy value */},{
    duration: 5000, 
    step: function(now,fx){ 
        a = 1 + ((now/100)*9); 
    }
});

demo