Accessing Var Via Another Function
Oct 21, 2011
I'm not an ace JSer by any means--the problem I'm about to pose could easily be solved with pointers in C++ (the language with which I am most familiar), unfortunately that is not an option.I am making a webapp using the google visualization API:URL...My problem may be related to the API, but I think it's more Javascript oriented--the Google group for the API is helpful,I have a function, drawDash(), which declares some elements of the visualization, some filters for the visualization, then binds them together and draws them. Now what I need to do is access the elements of one of those vars, specifically a filter, and add/change properties of it with an HTML form.
I've set up an onclick function for a set of checkboxes in my form that calls another function. The problem I face is that I can't really access the filter correctly.[code]So basically, I want to have a function be able to edit the var serviceSearch from another function.
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Sep 18, 2010
I'm making some changes to a google chrome extension I made and am having some trouble. Heres my code on a content script page (removeAttr.js) :
chrome.extension.sendRequest({greeting: "whitelist"}, function(response) {
var whitelist = response.whitelist;
console.log(response.whitelist);//working
});
alert(whitelist);//alerts "undefined"
How do I acess the whitelist variable from outside the sendrequest() function?
Iv tried saving it to a window.var variable with no luck. Iv tried creating a div and assigning it's innerHTML as the whitelist variable and getting it later with no luck. The fact that it's a chrome extension complicates things because i dont actually know if i can create elements from where the script is located.
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Apr 3, 2009
all on the same page that are accessed by the classic show/hide DIV functionality.
So user clicks button 2, which shows story 2, hide stories 1 and 3. (all on the same page).
The issue is that I've been asked to provide a method to directly link to story 2 or 3, which currently isn't possible since you need to load the page, then click the button to show story 2 or 3 (naturally 1 loads by default).
So I'm looking for any method to go right to story 2/3 from a link.
Perhaps I can pass a variable through the URL which executes the function as soon as the new page loads (which would mean a quick double page load but I could handle that)
Here's the function:
var showMe = function(me) {
document.getElementById(me)["style"]["display"] = "block";
}, hideMe = function(me) {
document.getElementById(me)["style"]["display"] = "none";
[Code]....
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Jun 9, 2009
I have the following function:
function containsurl(index){
var theurl = "[URL]";
..
}
I need to use the theurl variable in another function, how can I do that?
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Jul 9, 2007
<script type="text/javascript">
function popsizes(colorcode) {
var BLK=new Array();
BLK = ["2XL","3XL","4XL","5XL","LG","MD","SM","XL","XS"];
elem = document.getElementById("selcolor");
for (i=0; i<elem.options.length; i++){
sizelist = colorcode[i];
document.getElementById("selsize").options[i] = new Option(sizelist);
}}
</script>
In an event, i'm passing in "BLK" as the colorcode param. This is creating my selsize select box with B, L, K, and undefined options until the for loop finishes. ie, its taking the passed in colorcode as a literal string, instead of referencing the array. Anyone have a pointer as to how i can access the arry, instead of the literal string?
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Aug 23, 2010
Is it possible to print out the variable from within a function? In this particular case, I am trying to show the 'soundfile' variable I set in the playRandomSoundNoWindow function.
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Apr 21, 2011
I don't know what I'm doing wrong probably pertains more to Javascript than jQuery.Why can't I access the 'myVar' variable my clicking 'myButton2'?
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Feb 8, 2011
I have a javascript function that dynamically generates a select menu based on the region that was previously selected.
Code:
/* Inside my functions.js file I have this function */
function createCountrySelect(regionID, selectID, msg, defaultCID) {
[code]....
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Sep 19, 2010
I've attached a cut-down version of a script I am working on. It's a pretty simple button with a function attached, which creates a random number and compares it with a preset value.I can't seem to get the function to read the variables
Code:
#<html header>
<script language="javascript" type="text/javascript">
[code]....
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Nov 2, 2010
var attrIndexes = [];
$.get(queryString, function(data) {
attrIndexes = data.split(",");
});
after running this code the original variable is empty so something is wrong
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Jan 5, 2011
In parent window
function f1()
{
..code..
}
Inside IFrame
$(document).ready(function()
parent.f1;
);
The above works without any problem But,I am getting the "TypeError: f1 is not a function" on accessing the below code
[Code]...
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May 5, 2009
I've got a function displayResults(imageArray); that first calls removeElements(); to get rid of the currently displayed list items. Both functions are part of class function eventBox(array, string, date). both displayResults(imagearray); and removeElements(); have been bound to eventBox(); by e.g. this.removeElements = removeElements;
However, from within displayResults(imageArray); this.removeElements(this.identifier + "eventsul"); evaluates to "undefined". Also, this.identifier called from within the function also evaluates to undefined (it doesn't in other functions). For some reason I can't access global functions and variables from displayResults(imageArray);. Any ideas?
Here is the code for displayResults(imageArray); :
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Mar 28, 2010
I'm using jquery to make it easy for AJAX calls.
So I create a class: function cMap(mapID){//vars and stuff}
I go and prototype a function: cMap.prototype.loadMap = function(){ //jquery AJAX call }
Now in the jquery $.ajax({...}); call, I use an anonymous function on the "success:" call: success: function(data){ this.member = data; }
My problem is that inside this anonymous function call I'm trying to call a class member of my cMap class to store the data in from the AJAX call, but it's out of scope. So the JS console in FF/Chrome throws errors about bad value/doesn't exist.
How can I access this class member from inside an anonymous function? Or at least what's a good way to go about doing all this?
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Jul 23, 2005
I call a javascript function in my page load that accesses an iframe and I get an error. But if I wait till the page completely loads and access the iframe through a click event
everything works fine.
I'm trying to set some of the iframe's properties on page load. Can I do this?
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May 31, 2006
Is it possible to take an ASP textbox that has an attribute of
visible='hidden' and make it visible from javascript? I dont want it
to be visible until data on the page has been entered and thus need a
way to dynamically change its visibility?
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May 17, 2007
How can I access to specific element by javascript and not by using the getElementById method.
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Nov 30, 2010
I'm loading an XML document and grabbing a node with content in it including html. I can't figure out how to grab the src of the first IMG tag that appears in this text string
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Nov 23, 2006
I'm trying to figure out how to access body if it has no name or ID.
<html>
<head>
<title>blah</blah>
</head>
<body>
<p>example paragraph</p>
<style type="text/javascript">
document.getElementByTagName('body').setAttribute('bgcolor', '#000');
</style>
</body>
</html>
It didn't work. I also tried both of these:
document.getElementsByTagName('body').setAttribute('bgcolor', '#000');
document.getElementByTagName('body').item(0).setAttribute('bgcolor', '#000');
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Dec 8, 2007
I'm trying to access a div within another div, but get an error stating that the firstChild object of the div is not an object. The code I am using is as follows:
<html>
<body>
<div style="background-color:whitesmoke; width:100px;" onMouseOver="javascript:highlight_row(this)" onMouseOut="javascript:unhighlight_row(this)">div 1<div>div 2</div></div>
</body>
</html>
<script>
function highlight_row(obj)
{
obj.firstChild.style.display = "block";
}
function unhighlight_row(obj)
{
obj.firstChild.style.display = "none";
}
</script>
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Jul 22, 2003
Is there a way in Javascript to access a field with [] in it for example
destList[]. I need to have this since the field is a listbox and it contains multiple options. it gets posted to the server and handled by PHP. in order to have all the options submitted to the server the name of the field needs to have a [] on the end of it.
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Nov 30, 2003
I have a page with a link and a DIV with visibility=hidden. The target of the link is to a hidden IFRAME. The link executes a script in the hidden IFRAME. When the user clicks the link, I change the DIV's visibility to visible. Depending on a condition in the script executing in the hidden IFRAME, I want to change the DIV's visibility back to hidden. How would I do this?
document.parentWindow.all("DIV").style.visibility = "hidden"
but it didn't work.
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Sep 7, 2011
This is probably a ridiculously simple task, but I am new to Javascript, so here goes. Is it possible to get the 'id' (and other attributes) of a 'div' area after I have clicked into it?
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Jul 12, 2009
I'm trying to develop a google maps a site with two frames.In frame one i have a line of code as follows:var myPano = newGStreetviewPanorama(document.getElementById("pano"));The problem is that "pano" is the id of a div in frame 2, so I'm wondering how to access it.
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Jul 23, 2005
I have 2 arrays:
var A1 = new Array();
A1[ 0 ] ="Y2";
var B1 = new Array();
B1[ 0 ] ="Y1";
B1[ 1 ] ="sink";
I also have a drop down menu with the names of the arrays. Say:
document.form.option[1].text returns 'B1'
Can I transform the string 'B1' into the array B1, so that:
document.form.option[1].text[1] returns 'sink'
Currently I'm doing this with conditionals, e.g.
if(document.form.option[1].text =="B1){do stuff}
but this gets a bit messy.
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Jul 23, 2005
I have a situation where I'd like to read/parse the content
of a file I've read into an <IFRAME>. I've looked through
various FAQs and searched forums, and the closest I get to
accessing the file content is
myIframe.contentWindow.document.body.innerHTML
where myIframe is the node from getElementById(). But while
I can see the content of the file on my web page, I get an
empty string from the above reference. How do I get to the
file?
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Jul 23, 2005
Firstly, I am aware of all the issues that are introduced with frame
pages - this was not my decision - it is just what I have to work
with...
I have a frame page that looks like this
-------------------
| topFrame |
-------------------
| navFrame |
-------------------
| ContentsFrame |
|------------------
Within the contents frame I have a NEW FRAME set which looks like this
--------------------
| | |
|treeFrm | frmDisp |
| | |
--------------------
I know that this is awful. I have a link in the contentsFrame. When I
move over that link, I need to get a layer that already exists in the
frmDisplay to become visible..
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