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Thursday, June 28, 2012

Java Script Tutorial 20 : JavaScript Objects


JavaScript is an Object Based Programming language, and allows you to define your own objects and make your own variable types. 
An object is just a special kind of data. An object has properties and methods. We can create our own objects in java script, which will be discussed in future tutorials. 


Properties :
Properties are the values associated with an object. For example


<script type="text/javascript">
     var txt="This is text.";
     document.write(txt.length);
</script>


In above code, txt is an object and length is its property. Result displayed in browser will be : 13


Methods :
Methods are the actions that can be performed on objects. For example


<script type="text/javascript">
     var txt="This is Text";
     document.write(txt.toUpperCase());
</script>


In above code txt is an object and toUpperCase() is method.  Result displayed in browser will be : 
THIS IS TEXT


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