Tag: fadeIn

Animation of Text and Image: jQuery

Video tutorial to illustrate animation of text and image using jQuery.

In this tutorial, we accomplish:
Animation of text: using animate method.
Display of hidden image: using fadeIn method.
Toggle of image: using slideToggle method.
Change the color of the text being animated: using jQuery’s css method.

xHTML code

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<html>
 <head><title>jQuery Basics</title>
 </head>
 <body>         <button id="top">Move Top</button>
                <button id="down">Move Down</button>
                <button id="blue">Blue Coloring!</button>                
                <button id="img_show">Show Image</button>
 
               <div id="move">jQuery is awesome!</div>
               <img src="https://technotip.com/logo.png"/>
 
 
 </body>
</html>

Here we have 4 buttons, 1 div tag which contains some string in it, and 1 image tag.
Each button has its own unique ID, which is referenced to track user click event.

CSS code

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  <style type="text/css">
    #move{
      position: absolute;
      top: 200;
      left: 400;
    }
    img {
      display: none;
      padding: 10px;
      position: absolute;
      top: 100;
      left: 400;
 
    }
  </style>

Using Cascading Stylesheet we position the string present in div tag and the image conveniently on our web page.

jQuery
Move Top

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$(document).ready( function() {
 
    $("#top").click( function() {
       $("#move").animate({top: 30}, 200);
     });
 
});

Once the #top button is clicked, the string inside div tag(which has move as its id), moves upwards leaving 30px from top of the document and 200px from left.

Move Down

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$(document).ready( function() {
 
    $("#down").click( function() {
       $("#move").animate({top: 200}, 200);
     });  
 
});

Once the #down button is clicked, the string inside div tag(which has move as its id), moves down leaving 200px from top of the document and 200px from left.

Changing CSS property/value using jQuery

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$(document).ready( function() {
 
 $("#blue").click( function() {
        $("#move").css("color", "blue");
     });
 
});

Once the #blue button is clicked, the color of string inside div tag(which has move as its id), changes to blue.
.css() method takes 2 parameters, first one being css property and the second one its value.

Toggle image with sliding effect

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$(document).ready( function() {
 
   $("#img_show").click( function() {
       $("img").slideToggle("slow");
     });
 
});

Once the #img_show button is clicked, the image slides and toggles with slideIn and slideOut effect.

Image appears on the web page with fadeIn effect

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$(document).ready( function() {
 
   $("#img_show").click( function() {
       $("img").fadeIn("slow");
     });
 
});

Once the #img_show button is clicked, the hidden image fades into the web page.
The image is hidden with the help of css.

Video Tutorial: Animation of Text and Image: jQuery


[youtube https://www.youtube.com/watch?v=1nDGjCrfvrU]

YouTube Link: https://www.youtube.com/watch?v=1nDGjCrfvrU [Watch the Video In Full Screen.]



Full code

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<html>
 <head><title>jQuery Basics</title>
 
  <script src="script/jquery-1.8.1.min.js"></script>
  <script type="text/javascript">
 
   $(document).ready( function() {
 
 
     $("#top").click( function() {
       $("#move").animate({top: 30}, 200);
     });
 
     $("#down").click( function() {
       $("#move").animate({top: 200}, 200);
     });     
 
     $("#img_show").click( function() {
       $("img").slideToggle("slow");
     });
 
     $("#blue").click( function() {
        $("#move").css("color", "blue");
     });
 
     $("#txt_toggle").click( function() {
        $("#move").slideToggle("slow");
     });
 
   });
 
  </script>
 
  <style type="text/css">
    #move{
      position: absolute;
      top: 200;
      left: 400;
    }
    img {
      display: none;
      padding: 10px;
      position: absolute;
      top: 100;
      left: 400;
 
    }
  </style>
 
 </head>
 <body>         <button id="top">Move Top</button>
                <button id="down">Move Down</button>
                <button id="txt_toggle">Text Toggle</button>
                <button id="blue">Blue Coloring!</button>                
                <button id="img_show">Show Image</button>
 
               <div id="move">jQuery is awesome!</div>
               <img src="https://technotip.com/logo.png"/>
 
 
 </body>
</html>

Watch previous day videos and you’ll understand today’s and forthcoming video tutorials easily.

Previous Day Videos:
jQuery Basics: Replace Text/String Inside HTML Document
jQuery: Selectors, Methods, Effects
jQuery: Basic Image Effects

jQuery: Basic Image Effects

Video tutorial illustrates the fadeToggle, fadeIn, fadeOut effect on image using jQuery.

jQuery Code

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 <script type="text/javascript">
               $(document).ready( function() {
 
                 $("#togg").click( function() {
 
                   $("img").fadeToggle("slow");
 
                 });
 
               });
  </script>

Once the document is ready and the user clicks on the button(with togg as its id), the image fades In and fades Out.
This fadeIn and fadeOut effect is accomplished using fadeToggle method of jQuery.

To understand the basic coding of jQuery, please watch previous day videos about selectors and methods.

Complete Code

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<html>
 <head><title>Image Toggle</title>
  <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js">
  </script>
  <style type="text/css">
   img{
    position: absolute;
    top: 100;
    left: 200;
   }
  </style>
 
  <script type="text/javascript">
               $(document).ready( function() {
 
                 $("#togg").click( function() {
 
                   $("img").fadeToggle("slow");
 
                 });
 
               });
  </script>
  </head>
 <body>
  <img src="https://technotip.com/logo.png" />
  <button id="togg">Toggle Image!</button>
 </body>     
</html>

Inside the HTML document we have added a image and a button. Once the user clicks on this button, our jQuery code gets executed and the fade In and fade Out effect is presented to the user.
For the jQuery code to be interpreted by the javascript interpreter, we need to include the jQuery standard library file to our web page.

Some basic CSS makes the image look well positioned.

Video Tutorial: jQuery: Basic Image Effects


[youtube https://www.youtube.com/watch?v=CQUeZ7WcOgM]

YouTube Link: https://www.youtube.com/watch?v=CQUeZ7WcOgM [Watch the Video In Full Screen.]



Practice this image effect program and also try using
.fadeIn();
.fadeOut();

.slideIn();
.slideOut();
.slideToggle();

functions instead of .fadeToggle(); function.

Also notice that, page doesn’t reload while you perform these DOM manipulations using jQuery. This is a major advantage which builds up rich user experience.