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jQuery Effect fadeTo() Method

❮ jQuery Effect Methods


Gradually change the opacity of all <p> elements:

  $("p").fadeTo(1000, 0.4);
Try it Yourself »

Definition and Usage

The fadeTo() method gradually changes the opacity, for selected elements, to a specified opacity (fading effect).



Parameter Description
speed Required. Specifies the speed of the fading effect.

Possible values:

  • milliseconds
  • "slow"
  • "fast"
opacity Required. Specifies the opacity to fade to. Must be a number between 0.00 and 1.00
easing Optional. Specifies the speed of the element in different points of the animation. Default value is "swing"

Possible values:

  • "swing" - moves slower at the beginning/end, but faster in the middle
  • "linear" - moves in a constant speed
Tip: More easing functions are available in external plugins
callback Optional. A function to be executed after the fadeTo() method is completed

To learn more about callback, visit our jQuery Callback chapter

Try it Yourself - Examples

fadeTo() - Using the callback parameter
How to use the callback parameter when fading in and out an element.

❮ jQuery Effect Methods