How To Access Parent Class Variable

Sep 12, 2010

I was wondering how to access parents class variable. For example:
Code:
function Class(){
this.variable; }
SubClass.prototype = Class;
SubClass.prototype.constructor = SubClass;
function SubClass(){
this.secondVariable = Class.variable; <-how to access parent variable?
}

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Ok...so here is what I have:

function myClass() {
this.checkLogin = function(name,pwd) {
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Everything works above. The first alert shows that this.status was set to 'error'. However, if I call myClass.getStatus(), I get undefined. How can I get the parseData function to set the variables in the parent function?

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I have a class and function within it, like so

[Code]...

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[Code]....

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I have the following:

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<head>
<title>Capital</title>
<script language="Javascript" type="text/javascript">
<!--
function btnSubmit1_onclick()
{
var s = document.getElementById("form1");
s = s.text1;
s = s.value;
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//-->
</script>
</head>
<body>
<form action="" method="POST" id="form1" >
<p>When the checkbox is checked, you are prompted to enter a value</p>
<input type='text' id='text1' value='enter amt' maxlength=ཆ' tabindex=Ƈ' />
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I want to put the value I get in a field on the page that opend this, how do I do that?

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Mar 7, 2008

How do we access class names?

For example, this code...

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How do I do that?

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Oct 11, 2010

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Jul 5, 2010

Code...

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I read about closures but inside jquery this is referring the div notex....

how to access parent functions variables?

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Aug 19, 2011

I'm new to web programming in general, so bear with me as some of my methods may not be entirely correct. What I currently have working is I have a webpage which contains a DIV, which I am using to load another webpage via javascript(which calls itself, in order to get an auto-refreshing effect). The webpage that's being loaded is detecting if a process is currently running on the server and writing some console output while it's running, and what I want to do is stop the auto-refreshing when the process completes. (I can detect when the process stops already).I'm trying to figure out how to properly set this variable from my page that's being refreshed, since it's being loaded in a DIV I figured there has to be some way to retrieve the parent's information.

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(from the parent)
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See this code here:
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[Code].....

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Apr 22, 2007

I have a javascript object which dynamically generates a table adding, deleting and moving rows as the user clicks on buttons or links. Problem is when I generate a table row and add the javascript method call to my class, I have to put the object instance name variable of the class in order for it to be called from the onclick=function(). This is seriously limiting, but I'm stuck for a way round it. Heres a edited of the code so you get the idea....

Instantiating the object :-

var dtl = new DynamicTableList("table1", $
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My javascript class DynamicTableList, note the dtl javascript object
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avoid this???

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showUp, showDown)
{
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{
...
};

this.processRows = function()
{
...
};

this.getVisibility = function(visible)
{
...
};

this.delRow = function(button)
{
...
};

this.addRow = function(selection)
{
...

if (showDelete)
{
var cell2 = document.createElement('TD');
var inp2 = document.createElement('IMG');
/
************************************************** ***********************************************/
inp2.onclick=function(){dtl.delRow(this);} // Have to specify
dtc!!!!!!!!
/
************************************************** ***********************************************/
inp2.title='Delete'
inp2.alt='Delete'
inp2.src='images/delete.gif'
cell2.appendChild(inp2);
row.appendChild(cell2);
}

...

tbody.appendChild(row);

this.processRows();
};

this.moveRow = function(node, vector)
{
};
}

Obviously the code dtl.delRow(this); is being dynamically generated, but how do I replace the dtl instance name with something that'll work whatever the user of this class calls the instance of it!

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I've got a list similar to the following [code]...

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I need to change the class of the 'a' tag within the li that has the nested ul e.g

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<li>Link 2<a class="menu"></a></li>
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</li>
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See the below objects:

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{
this.reports=new Reports();
}

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{
//How do I access Manager from here?
}

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why I'm not able to remove the class "hasLink" from the parent element that contains the class ".test"

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<li class="hasLink">
<div>
<a href=" class="link">link</a>

[Code]....

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Mar 21, 2011

<ul id="menu">
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<ul>
<li><a href="A.asp">Conditions Required</a></li>
<li><a href="B.asp">Verification of Entry</a></li>
<li class="submenu"><a href="#">Special Measures</a>
<ul>

[Code]...

With the above code, i want to add the "active" class to the <li> tag related to the current page. "get_cur_page" is an ASP function that returns the page so if you are on the page J it will return J.asp.

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May 24, 2011

I understand that using

Code:
.parent(".class")

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Mar 8, 2011

I'm building a volunteer translation site. In order to constantly update only paragraphs that multiple translators are working on, I need to pass an array to PHP of A: which paragraphs are open, and B: which translations have been submitted and are visible on the user's screen. PHP will then compare this with what is in the database and tell jQuery to add new submitted translation paragraphs or remove deleted ones.I've managed to make a string of all the open Div's and have it updated every second, like this:

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[code]....

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I have a menu as follows
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<li class="brakes"><a href="#">Brakes</a></li>
<li class="transmission"><a href="#">Transmission</a></li>
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</ul></li>

<li><a href="#">Polo</a>
<ul class="polo">
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<li class="brakes"><a href="#">Brakes</a></li>
<li class="transmission"><a href="#">Transmission</a></li>
<li class="interior"><a href="#">Interior</a></li>
<li class="running_gear"><a href="#">Running Gear</a></li>

</ul></li>
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<ul class="passat">
<li class="engine"><a href="#">Engine</a></li>
<li class="brakes"><a href="#">Brakes</a></li>
<li class="transmission"><a href="#">Transmission</a></li>
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</ul></li>

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<li class="brakes"><a href="#">Brakes</a></li>
<li class="transmission"><a href="#">Transmission</a></li>
<li class="interior"><a href="#">Interior</a></li>
<li class="running_gear"><a href="#">Running Gear</a></li>
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I tryed this:

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How I have to handle it?

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