List All Declared Variables In Script?
Oct 8, 2010Does anyone know how to list all declared variables in JavaScript ?
View 4 Replies
ADVERTISEMENT
What Determines If A Variable Needs To Be Declared
Apr 26, 2009I'm confused about declaring variables. I see variable explicitly declared with the keyword var, both inside and outside of functions, and I suppose that depending on where it is declared relates to variable scope. BUT, I also see variable used that have not been explicitly declared with var. What determines if a variable needs to be declared?
View 4 Replies View RelatedValidating A Variable Is Declared
Dec 7, 2006I have a situation in javascript where (this is inherited code, so I gotta deal with it) a variable is being used without being declared, as
someVar = someExpression ;
The original developer was relying on IE which automagically creates javascript variables for the IDs of all HTML elements, so somewhere in the HTML, there's
<someTAG id='someVar' >blah </someTAG>.
Unfortunately, in Mozilla (Firefox), I get a javascript error indicating that 'someVar' is not defined.
I wanted to check to see if the variable was undefined, then define it
if (undefined == someVar) someVar = document.getElementById("someVar") ;
this gives the same error in Mozilla (undeclared variable). I saw a thread with this exact problem, but it looks like its been archived. Does anyone have the solution to checking in javascript if a name is "undeclared" as opposed to "undefined"???
Multiple Variables In A Drop Down List?
Jul 1, 2011I am creating a quote calculator as a mobile app using the JQuery Mobile plugin in Dreamweaver CS5.5. This supports HTML5 & Javascript.
I have included a drop down list in which the user selects a specific Annual Volume. I have 2 different calculations that need to be done based on the users selection. Different calculations meaning that I need 2 different number values assigned to the option.
For Example:
Calculation #1 (I'm calculating what the Run Quantity is based on what the user selects as the Annual Volume. If user selects an Annual Volume of 150,000 then the calculated result for Run Quantity needs to be 3500)
HTML for this scenario:
<li data-role="fieldcontain">
<p><span class="ui-listview-inset">Annual Volume:</label>
<select name="annualvolume" id="annualvolume">
onChange="Calculate();">
[Code].....
Currently I am simply having the user enter the annual volume twice so I can do the 2 calculations, but this is really clunky and not ideal.
JQuery :: How To List Multiple Objects / Variables
Apr 9, 2010I was wondering how you would list multiple variables after a equal ==?
Example....
if ( pathname == schoolinformation, chaplainchatter)
$('#button_newspress_archive,#button_tech_college,#button_parent_portal,#button_transition_portal,#button_6th_form,#button_connect,#button_vacancies,#button_vle_login').css('display', 'none');
$('#school_information_sub').css('display', 'block');
if ( pathname != schoolinformation, chaplainchatter)
$('#school_information_sub').css('display', 'none');
Or even list multiple URL's within the variables?
Example
....
var schoolinformation = '/st-paul-s-website/school-information/school-news/headteachers-headlines', '/st-paul-s-website/school-information/school-news/chaplain-chatter-headlines';
Populating Mailto With Variables Contained In List
May 20, 2010I am planning on using the maito form with Javascript. I have a form and it is structured in the following fashion:
<form>
<b>Subject </b> <input type="text" name="subject" size="30"><br>
<b>Person 1 <b><input type="checkbox" name="email" value="person1@email.com"><br>
<b>Person 2 <b><input type="checkbox" name="email" value="person2@email.com"><br>
<b>Person 3 <b><input type="checkbox" name="email" value="person3@email.com"><br>
<input type="submit" onclick="submit">
</form>
What I am trying to do with Javascript is that you fill out the subject name and then you select which recipients of email you want to receive the email. So if I select Checkbox 1 and Checkbox 3 then when I click submit, it opens my Outlook and the To is filled in with person1@email.com;person2@email.com. So I guess I would need the javascript to populate and <href mailto: form after checking which names are checked and then populating the mailto with the variable that contains the list of names I chose. Right now we have a clunky method using the mailto but I don't have the option of choosing who it mails to so when I send it, I send the mail to everyone, even those on vacation.
JQuery :: Use A Variable Declared In A Function Outside A Function?
Nov 17, 2011So I've got this checkbox thing going on, where an array converted with the value of each checkbox in it.It looks like this:
[Code]...
What I want out of this function is the variable newworkdays to use in another function.
How do I access the "newworkdays" outside the function? I've already try to declare the variable outside of the function, though that resulted in that I didn't get the value of the variable inside the function.
Get Variables Into PHP Variables Or MySQL Database?
Apr 2, 2009Anyone know how to get Javascript variables into PHP variables or a MySQL database? Full question in the PHP section.
View 2 Replies View RelatedSetting Html Variables To URL Variables
Feb 3, 2011I have some JavaScript which is splitting out the different variable elements from the URL.Now, how do I set the internal variables?Then I want to set the variable ScriptHeading to be Change and the variable ScriptType to be NewThread.I keep finding all sorts of lovely code showing how to split out the various sections in many different ways, but I can't find anything on how to actually set these variables.
View 1 Replies View RelatedPHP Variables To Javascript Variables
May 6, 2006I have a program written in Javascript and fully functioning which takes a user-selected directory name and then displays all the photos in that directory in a certain format.
I am now wanting to expand the program to allow users to optionally enter their own strings and the program will use all the photos from www.flickr.com which use that string as a tag.
I have a PHP interface to flickr (called PHPflickr) which collects all the relevant photo urls. I now need to get these images back into my Javascript so I can process them using the existing functions (rather than rewrite all my functions in PHP code and have two sets of functions in the program). I found on another thread a means to do this for a date variable:
var jsArray = new Array(
<?php
$length = count($monthDataArray);
for ($i = 0; $i < $length; $i++)
{
echo '"' . addslashes($monthDataArray[$i]) . '"' . (($i < $length - 1) ? ',' : '') . "
";
}
?>
but being completely new to PHP I'm not sure what "addslashes" might be or what formatting will be necessary if I am starting with an array of urls. Code:
Multiple Drop Down With Dynamic List (PHP - MySql - AJAX) - Filter The Results Into A List
Aug 2, 2011I have a table that has parts with multiple characteristics. Part Number, Height, Width, Capacity, Price, Etc. I would like to have a drop downs for all of these values, when a user selects one of these values it will filter the results into a list. Ex. user selects a part that has a Height of 6 and width of 10 it will only list those parts. As I said earlier, I have a script that will give me all the parts, however I am not able to make the onchange list parts with multiple values.
View 9 Replies View RelatedJQuery :: Limit If A Value Can Be Selected In A Drop Down List (select) Based On Other List
Jun 9, 2009I have a page that displays a list of people playing in a tournament. I need to be able to generate a Leaderboard based on which players are manually selected by the admin. Next to each person there is a drop-down list. An admin can go in and select a "slot" that a player should be in on the leader board from 1 to 8, or leave it blank if none. What I need to figure out how to do is the following, when a change event happens on a drop-down list, and say the value 5 is selected, I need to check to make sure that 5 is not already selected in one of the other players drop-down lists, in other words, that the 5th leaderboard slot is not already full. if it is, display an error message and make them change that one first. how to do that with jQuery? I'm thinking it will have something to do with the each() function, but not sure exactly how the logic should work.
View 4 Replies View RelatedJQuery :: Access The 'a Href' In A List Item In An Unordered List??
Oct 8, 2010i have a menu and i would like to change the color of the Categories which have subcategories only. In my example the basic categories are: News , Announcements , Contact and Career. Only Announcements and Career categories have subcategories. So i would like those two to turn green. The fact is that the list items include a href ,so i don't know how to access those "a href" combined with "this".
<ul id="my_menu">
<li id="id0"><a href="#" style="text-decoration:none">News</a></li>
<li id="id1"><a href="#" style="text-decoration:none">Announcements</a>
<ul>
[Code].....
JQuery :: Simple Expand/collapse List : Big Gap Of Space After The List?
Jun 2, 2010I have been trying to make an expand/collapse (essentially accordion) list. So far, everything works and looks fine in Firefox, Safari, and Chrome, but in IE8, the page height is static when it loads, with a page height being as if all headers in the list were expanded. The expand/collapse functionality works,but as you can imagine, there is this big gap of space after the list.
The html markup uses <h2> tags for the always-visible header portion and a <div> for the expanding/collapsing content. The <div> content contains form elements and everything is enclosed in a form tag.Anyways, here is the jQuery code:
$(document).ready(function() {
$('<img src="plus.png" class="icon" />').prependTo('.header');
$('.content').hide();[code].....
Update A Dropdown List Based On The Selection Of A Previous List
Aug 16, 2010i am writing a script that will update a dropdown list based on the selection of a previous list. the script is run by a PHP script, so instead of posting the PHP, i will post an example client-side script. the hierachy is: category, sub category, brand (but sometimes there exists no sub category and the PHP script queries and adds brands instead) everything works correctly, except for one major issue: you can not change the selection of the third (brand) box this could be an easy fix for some coders, but i am not experienced in javascript and could really use some help. here is an example script, sorry it is so long
[Code]...
PHP Drop Down List Selection Populates Second Dropdown List Or Text Box?
Jul 13, 2011I have been struggling on a bit of code for a while now. I need to populate a second drop down list (Region) based upon the selection of the first (County).I have found a piece of code that works on its own and have adapted to suit my needs - see below. However, when I drop it into my main page the javascript is not working. It's because of the formObject but I just don't know enough to resolve this! Furthermore, I need the textboxes the user has already completed in the form to retain their value once the javascript kicks in as the completed form will submit to a database.This piece of code is working well . . . .
<?php
$link = mysql_connect('myhost', 'myusername', 'mypassword') or die('Could not connect: ' . mysql_error());
mysql_select_db('mydatabase') or die('Could not select database');[code]......
AJAX :: Populate An ASP List Box Based On Selection Of A Previous List Box?
Mar 7, 2011I have 3 ASP list boxes. I would like to populate the second list box based on the selection in the first list box and based on the selection in the second list box, populate the third. I would like to do this using AJAX. How can I do it? Can someone please give me the code snippet as I am a complete noob when it comes to AJAX and I kinda am running outta time to finish implementing it. Additionally, should I use ASP boxes or HTML <select> tag?
View 4 Replies View RelatedJQuery :: Inserting A List Element Into An Ordered List?
Jul 19, 2010I'm working on a project that requires dynamic manipulation of an ordered list -- adding and removing elements in response to the user pressing buttons. I've run in to some odd behavior. Here's my code:
HTML
<ol id="track-list">
<li>Static Content Here</li>
</ol>
<input type="button" id="add-track" value="Add Track" />
jQuery:
$("#add-track").click(function(){
var listEl = $("<li>Dynamic Content Here</li>");
listEl.hide();
[code]....
Looks pretty straightforward, problem is when I add the new list element it does not prepend it with any number (being part of an ordered list). Now if I remove the hide and fadeIn lines (just append it), it inserts it correctly with a number before it, but I want this to look pretty being jQuery and all...
Jukebox - Replay List And - Create Non Dropdown List ?
Sep 1, 2010I am trying to construct a Jukebox for my website. I have spent considerable time all over the WEB and at this forum which addressed the issue in a 50 page thread. Please see: [url]
I got a lot of ideas from this thread but still cannot figure a way to do the following within the Jukebox. These are my main two questions for everything below:
1.How can I have the Jukebox cycle through all tunes and then start over from the beginning?
2.How can I allow the user to select a tune from a list but not a drop down list, have the Jukebox start from the users selection and then play all songs to the end. Then as in #1, start over from the beginning?
Per this thread I came away with basically two ways to assemble the jukebox. One uses links in a drop down list which the user can choose from. The other is to use an .m3u playlist. The user can only select a playlist from the drop down.
Below, I have included the code for each Jukebox. To see the Jukeboxes in action please go to my website where I have posted some test pages exhibiting the jukeboxes that I am referring to.
The following is the Jukebox which utilizes an .m3u playlist. If I end up using this idea I would like the tunes in the .m3u playlist to be displayed and allow the user to be able to choose a tune in the list. Then have the list play to the end of all tunes in the list. Then start over from the beginning of the list. After this code is the .m3u playlist.
Go to url removed and click on the link that says:
Jukebox utilizing an .m3u playlist:
Here is the .m3u playlist for the above code:
The following code is for the Jukebox that has a list of links in a dropdown list. If I go with this idea, I would like for the list not to be a dropdown list but just a list of tunes. The user should be able to click on any tune in the list and the player should start from that point, play all the remaining tunes in the list and then start from the beginning.
Go to url removed and click on the link that says:
Another idea I found on the WEB also uses an .m3u playlist. The good thing about it is that it lists all the tunes in the playlist which the user can then select from. This jukebox calls up an entire Windows Media Player. If I was to use this idea I would like to be able to disable the left side of the player where the user has options such as burning to CD, Media Guide, Radio Tuner etc¦
Go to url removed and click on the link that says:
Transfer Data From Popup List Box To Parent List Box
Jul 6, 2004when i try to add a data from popup list box to parent window listbox it pops an error.
Servlet threw an exception. This is my code
var optionvalue=thisForm.behaviourname.options[i].value;
var len=window.opener.document.FormMaterialDetail.inparameterid.options.length; window.opener.document.FormMaterialDetail.inparameterid.options[len] = new Option(thisForm.behaviourname.options[i].text, optionvalue);
Is the above code right?
JQuery :: Select A Sub-list From A Long List?
Aug 14, 2009I have a MySQL table with 90 columns and I want the users to be able to select any columns they concern and output the result accordingly. In the front-end, I can use a group of checkbox which looks very ugly and I can not setup the orders for selected columns. Is there a plug-in or some examples in jQuery, that I can make 2 parallel boxes (i.e. an original-box and a selected-box). the original- box lists all of the column names at the beginning and there is a way to move items between two boxes. And the order of items in the selected-box can be adjusted. the items in the selected-box will be used to build into an array in my backend code.
View 1 Replies View RelatedJQuery :: Wrapping A Portion Of A List Within A List?
May 21, 2011I am trying to wrap a list with in a list. I am not able to achive this. Here is the html markup:
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
[Code]...
Get The Order Of List Item In An Unordered List?
Feb 17, 2009I am trying to get the order of list item in an unordered list. Here is the mark up
Code HTML4Strict:
<ul id="list1">
<li>ul1 item 3</li>
<li>ul1 item 2</li>
<li>ul1 item 1</li>
</ul>
[Code]...
Dynamic Drop-down List - Create A Dynamic Menu Where A User Selects One Item And Another Select List Is Shown
Jun 30, 2009I've been beating my head against a wall for a few days trying to get this working. I'm trying to create a dynamic menu where a user selects one item and another select list is shown, then another and another (and so on). Here is my JS, it *should* be taking the ID of the div, comparing it to the selected value and then showing another div by settings it's class property to visible:
[Code]...
Create A Linkable List From Another List With Js?
Dec 16, 2010I have a navigation list like this:
<div id ="nav">
<form name="head">
<ul id="headNav">
[code]...
My thought ware if I could get the links to a global variable and the text to another variable. And from there type it out on the page like a list?
Advance Time From One List To Another List?
Feb 14, 2011I have two lists/menus that are start and end times and I want to make the end time list/menu advance 2 hours from whatever is chosen in start list/menu. The values in both of the list/menu are
[CODE]
<select name="Time" class="Body" id="Time">
<option value="">Choose Start Time</option>
[code]....
