The fadeToggle() Effect is a combination of fade in and fade out effect. i.e. Hides the visible element with fade out effect and if the element is hidden, makes it visible using fade in effect.
<html> <head> <title> My First Programme </title> <script src = "https://cdnjs.cloudflare.com/ajax/libs/JQUERY/3.3.1/jquery.min.js"> </script> </head> <body> <h1> JQuery </h1> <p> This is a sentence </p> <button> FadeOut / FadeIn </button> <script> $('button').click( function() { $('p').fadeToggle(); }); </script> </body> </html>
So, in the above example, we have a <p> element,
<p> This is a sentence </p>
And a <button> element,
<button> FadeOut / FadeIn </button>
And on buton click, the JQuery action gets triggered,
$('button').click( function() { $('p').fadeToggle(); });
And the fadeToggle() effect gets triggered. So, if the <p> element is hidden, it shows it with faded effect and it the <p> element is visible, it hides it with faded effect.
Similarly, you can use the speed and callback function with fadeToggle() effect.