variable « Var « Javascript Data Type Q&A

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Javascript Data Type Q&A » Var » variable

1. variables hell - problem with vars and tabs (firefox extension) stackoverflow.com

I try to make firefox extension, that display two buttons: 1 and 2. When you press button1 to var path get value, that is address of current open page, then new ...

2. Can you setup a variable for javascript in one page and have another page load and still have it recognize the variable? stackoverflow.com

Can you setup a variable for javascript in one page and have another page load and still have it recognize the variable?

3. "var variable" returns undefined? stackoverflow.com

When I run "var variable = true;" in chrome console I get "undefined" returned:

> var variable = true;
undefined

But when I run without "var" it returns true:

> variable = true;
true

Why is it ...

4. Setting Javascript Variable, what does var win = window.dialogArguments || opener || parent || top; do? stackoverflow.com

I came across this construction in a Javascript file, and I'm not sure what it does.

var win = window.dialogArguments || opener || parent || top;

I understand that window.dialogArguments returns optional arguments ...

5. ["var"+1]=someValue - Can something like this be done? stackoverflow.com

function giveValue(n){
    ["r"+n]=5;
}
giveValue(10);

You get the idea. The point is that I have a handful of variables with similar name, varying only in a number at the end. Using a ...

6. Why JS Error IN IE6 (not var variables) stackoverflow.com

I coded the following JS

<html>
 <body>
   <img id="img" src="http://example.com/img.jpg" />
   <script type="text/javascript"> 
//<![CDATA[
(function(){
    img = document.getElementById("img");
    img.src = "http://example.com/img.png";
})();
  //]]>
</script> ...

7. Why we should check for the variable being defined var m = m || function(){} stackoverflow.com

Lot of libraries i have seen methods defined like this

Common.deepCopy = Common.deepCopy || function(oldObject) {
        return $.extend(true, {}, oldObject);
    };

What is ...

8. Reach a JavaScript var in Jelly stackoverflow.com

I have a checkbox:

< f:checkbox name="${attrs.checkboxName}" onclick="doToggleList(${attrs.checkboxName});"></f:checkbox>

That calls a javascript: http://pastebin.com/6jjTqVzJ I also have variable dropdownListMode in jelly:

< j:set var="dropdownListMode" value="generateEntries"/>

what i need to do is: Only set the jelly variable to ...

9. Javascript variable stackoverflow.com

I'm struggling to get the result of one variable change another unrelated variable. I have a script that is generating a random number between 0 and 19, which attaches itself to ...

10. Javascript: access server side variable client side using variable stackoverflow.com

I am attempting to:

Use JQuery to 'loop' through all elements on a page that belong to the same CSS class ("boilerplate")
Check the current value of each against it's server side assigned ...

11. Why does modernizer not use var for ret variable stackoverflow.com

I was studying the source for the modernizer library and I"m wondering why they don't use the keyword var for the variable ret in the second line of code? They use ...

12. javascript variable and media screen stackoverflow.com

I've just realized my plan won't work with an earlier question. So I need some advice. I'm using javascript variable to get the width and height of all browsers.

var ...

13. var variable1, variable2 vs. var variable 1; var variable 2 codingforums.com

Well, clearly there are 3 or 4 bytes (or 6 or 8 bytes, if Unicode is used) difference in the size of the HTML. And the HTML has to be stored *somewhere* on the client machine and has to be sent from server to client. So if you are able to measure picoseconds you should see a difference. But I'm sure ...

14. Using var to initiate variables? sitepoint.com

I've always been very confused as to when to use var and how to use it. I know if I want the variable to stay within the scope of a function I should initiate it with "var", but how do I do this? Let's say the first time I use the variable is in a loop. Is it correct to do: ...