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The fadeTo( ) method fades the opacity of all matched elements to a specified opacity and firing an optional callback after completion.
Here is the simple syntax to use this method:
selector.fadeTo(speed, opacity[, callback]); |
Here is the description of all the parameters used by this method:
speed: A string representing one of the three predefined speeds ("slow", "def", or "fast") or the number of milliseconds to run the animation (e.g. 1000).
opacity: A number between 0 and 1 denoting the target opacity.
callback: This is optional parameter representing a function to call once the animation is complete.
Following is a simple example a simple showing the usage of this method:
<html> <head> <title>the title</title> <script type="text/javascript" src="/jquery/jquery-1.3.2.min.js"></script> <script type="text/javascript" language="javascript"> $(document).ready(function() { $("#more").click(function(){ $(".target").fadeTo( 'slow', 0.7, function(){ $(".log").text('More Opacity Transition Complete'); }); }); $("#less").click(function(){ $(".target").fadeTo( 'slow', 0.2, function(){ $(".log").text('less Opacity Transition Complete'); }); }); }); </script> <style> p { background-color:#bca; width:200px; border:1px solid green; } </style> </head> <body> <p>Click on any of the buttons</p> <button id="less"> Less Opacity </button> <button id="more"> More Opacity</button> <div class="target"> <img src="/images/jquery.jpg" alt="jQuery" /> </div> <div class="log"></div> </body> </html> |
To understand it in better way you can Try it yourself.
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