Skip to main content

jQuery Callback Functions

jQuery Callback Functions:-

 JavaScript statements are executed line by line. However, with effects, the next line of code can be run even though the effect is not finished. This can create errors.

To prevent this, you can create a callback function.

A callback function is executed after the current effect is finished.

 Typical syntax: $(selector).hide(speed,callback);
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("p").hide("slow", function(){
      alert("The paragraph is now hidden");
    });
  });
});
</script>
</head>
<body>

<button>Hide</button>

<p>This is a paragraph with little content.</p>

</body>

</html>


Comments

Post a Comment

Popular posts from this blog

How to handle XML with PHP

What is XML? The  eXtensible Markup Language  is a way to structure your data for sharing across sites. Some of the technologies that are crucial to the web like  RSS  (Real Simple Syndication) and  Podcasts  are special flavors of XML. The beautiful thing about XML is that you can easily roll your own for anything you need. XML is easy to create because it’s a lot like HTML…except you can make up your own tags. Let’s say, for example that you’re putting together a feed for a list of songs playing at your own radio station. We’ll keep this simple, so we’ll just encode the name of the artist, the title of the song, plus the time when the song was played. We make up a couple of tags called  <title>  and  <artist>  and wrap each of them around a  <song>  tag. We’ll create a dateplayed attribute for each song with the date and time the song was played. You might encode something like that in this manner. ...
5 comments
Read more

XSLT QUICK GUIDE

E X tensible  S tylesheet  L anguage  T ransformation commonly known as XSLT is a way to transform the XML document into other formats such as XHTML. XSL Before learning XSLT, we should first understand XSL which stands for E X tensible  S tylesheet  L anguage. It is similar to XML as CSS is to HTML. Need for XSL In case of HTML document, tags are predefined such as table, div, and span; and the browser knows how to add style to them and display those using CSS styles. But in case of XML documents, tags are not predefined. In order to understand and style an XML document, World Wide Web Consortium (W3C) developed XSL which can act as XML based Stylesheet Language. An XSL document specifies how a browser should render an XML document. Following are the main parts of XSL − ·          XSLT  − used to transform XML document into various other types of document. ·       ...
8 comments
Read more

Jquery Sliding

jQuery Sliding Methods:-  With jQuery you can create a sliding effect on elements. jQuery has the following slide methods: slideDown() slideUp() slideToggle() (1)slideDown()  example:- <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script> $(document).ready(function(){   $("#flip").click(function(){     $("#panel").slideDown("slow");   }); }); </script> <style> #panel, #flip {   padding: 5px;   text-align: center;   background-color: #e5eecc;   border: solid 1px #c3c3c3; } #panel {   padding: 50px;   display: none; } </style> </head> <body> <div id="flip">Click to slide down panel</div> <div id="panel">Hello world!</div> </body> </html> (2)sldeUP()  example:- <html> <head> <script src="https://ajax....
11 comments
Read more