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You can create the number of properties of class &quot;Animal&quot;. In above example, class &quot;Animal&quot; has the property speak. In real world scenario, object has multiple properties. You can set the properties of that object using above example
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You can create the number of properties of class "Animal". In above example, class "Animal" has the property speak. In real world scenario, object has multiple properties. You can set the properties of that object using above example

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<div class="content wysiwyg-content">
Hi <br />
<br />
<br />
I was reading an example regarding the object constructor on<br />
&quot;<a href="http://www.javascriptkit.com/javatutors/oopjs2.shtml" rel="ugc">http://www.javascriptkit.com/javatutors/oopjs2.shtml</a>&quot;&nbsp;<br />
for practicing the first heading i.e. object constructor and prototyping I have created one small example<br />
<br />
&nbsp;function Animal(name) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; this.speak = function() {<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; alert(&quot;Hi &quot;&nbsp;+ name);<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }<br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var cat = new Animal(&quot;sweetu&quot;);<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; cat.speak();<br />
which is working fine. But a quick question comes to my mind is what is the practical usage of this concept and if I use it what will be the benefit.<br />
<br />
Regards<br />
Karan Gupta
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Hi 


I was reading an example regarding the object constructor on
"http://www.javascriptkit.com/javatutors/oopjs2.shtml" 
for practicing the first heading i.e. object constructor and prototyping I have created one small example

 function Animal(name) {            
                    this.speak = function() {
                        alert("Hi " + name);
                    }
                }

                var cat = new Animal("sweetu");
                cat.speak();
which is working fine. But a quick question comes to my mind is what is the practical usage of this concept and if I use it what will be the benefit.

Regards
Karan Gupta

object constructor

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

JavaScript

JScript is Microsoft's dialect of the ECMAScript standard that is used in Microsoft's Internet Explorer. JScript is implemented as an Active Scripting engine, so it can be "plugged in" to OLE Automation applications that support Active Scripting, such as Internet Explorer, Active Server Pages, and Windows Script Host. It also means such applications can use multiple Active Scripting languages, e.g., JScript, VBScript or PerlScript.

JScript

A scripting language is a programming language that supports scripts, programs written for a special run-time environment that automate the execution of tasks that could alternatively be executed one-by-one by a human operator. Scripting languages are often interpreted (rather than compiled). Primitives are usually the elementary tasks or API calls, and the language allows them to be combined into more complex programs. Environments that can be automated through scripting include software applications, web pages within a web browser, the shells of operating systems (OS), embedded systems, as well as numerous games. A scripting language can be viewed as a domain-specific language for a particular environment; in the case of scripting an application, this is also known as an extension language.