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on 27/1/01 2:11 pm, Lin Ma at linma@b... wrote:



If I have a javascript object defined in a .js file as a "base" object, now
I want to extend it in other .js file so that the common behavior could be
implemented once for all others. Is it possible? how to do it? Thanks in
advance. 

i.e. 
in base.js 

it has 
function base() 
{ 
   this.m_basevar1 = null;
} 

function base_Method1( param )
{ 
   this.m_basevar1 = param;
   ... ... 
   return;      
} 

-------------------------

in child1.js (how do I do include base.js?)

I would like to have
founction child1() 
{ 
   this.m_child1var1 = null;
} 

function child1_Method1( param )
{ 
   /* 
   do something like:
   this.m_basevar1 = param;   //as if it inherits the m_basevar1 from "base"
   */ 
} 
--------------------------
and in the place where using this child1 would be like:

   var o = new child1();
   o.child_method1("something");
   
  /*also 
   o.base_method1("something"); //as if it inherits the base_method1 from
"base" 
   */ 
       
Is it doable? ---


Hi,
All you have to do is implement the .js file when the html file is loading.
To do this you need to use the
"src" property of the <script> tag:

<script src="pathtoscript/script.js"></script>

If you place this along with the javascript that you write in the page you
will be able to access any functions it holds.