all object oriented langs give a posibility to implement many construstors
can I have few constructors in js
i.e.:
function X()
{
this.Id = 1;
}
function X(id)
{
this.Id = id;
}
X.prototype.print = function()
{
alert( 'Id: '+this.Id );
}
var x1 = new X();
var x2 = new X(5);
it doesn't work, print return:
for x1: Id: undefined
for x2: Id: 5
my task was to make two constructors for the code that I also posted and they are not working. why they are not working. I posted them right below. here are my constructors for course and Faculty
course.js:
function Course (name, times, instructorName, instructorDept ) {
this.name = name ||"unknown course name";
this.times = times||"unknown time";
this.instructor = new Faculty(instructorName, instructorDept);
[Code]....
I'm trying to understand how JS constructors work. In particular, I'm trying to work out how I can call a parameterised constructor and check that the values of the parameters are valid within an object that has private properties. So for test purposes, I construct a data of birth object like this:
HTML Code:
<pre>
function Dob( day, month, year ) {
[code]....
I have a web page with several iframes, and I want to be able to refresh
them only not the entire web page but also to refresh them at different time
intervals. I've tried a few ways but it ends up refreshing the entire page,
doh. I've tried with DIV's and objects aswell but no joy,
I am attempting to create a form similar to one found in Access where the select box's drop-down list displays multiple columns while the selection only displays the first column. For example, in my app, I have a drop-down for "A", "M", and "D", but when the list drops, it should say:A | AddM | ModifyD | DeleteI don't care about the spacing of the pipe characters, but I simply want the selected item to only show the first column (in this case, the single letter) so I don't have a long select box.
View 1 Replies View RelatedAnyone have a script that has multi timers that will loop; Sort of like the ones used in reverse auctions.
First timer 1:24:59:59 (days/h/m/s)
Second timer 1:00:00 (h/m/s)
Third timer 1:59 (m/s)
Forth timer 59 (s)
I have one now that I found here and makes no sense to me;
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
[Code]....
I got the following code running on a seperate page but how could I do it without forms? the page I wish to put it on page is one big form and therefore nested forms are a no no.
<script>
function calc() {
var inp = document.ccForm.inpt.value
var inp2 = document.ccForm.inpt2.value
var outp = 0
outp = inp * inp2
document.ccForm.outpt.value = outp
}
</SCRIPT>
<FORM ACTION="#" NAME="ccForm">
<INPUT TYPE=TEXT NAME="inpt" SIZE=10 VALUE="2.9" ONCHANGE="calc()">
<INPUT TYPE=TEXT NAME="inpt2" SIZE=10 VALUE="2.9" ONCHANGE="calc()">
<INPUT TYPE=TEXT NAME="outpt" SIZE=10 DISABLED>
</FORM>
page = $("<div id="content"><p>aaa</p><p>bbb</p><p>ccc</p></div>").find('p').eq(0);This can echo `<p>aaa</p>` but How to select multi `eq()` in jqeury? if I need `<p>aaa</p><p>bbb</p>`
View 1 Replies View RelatedI wanted to put data in dropdown..but capacity of data is arround 6000 to 8000,is their any method like multi-filter drop down?how to do it?
View 2 Replies View RelatedOk, if you create multi-column lists with CSS, you tend to get:
Code:
1 2
3 4
5 6
rather than:
Code:
1 4
2 5
3 6
One solution for this is here. However, that requires unique names for each list item and formatting the CSS in advance for each list in advance. LAME.
However, that solution can be automated with Javascript and I am almost positive I have seen that done before, I just can't find it now. Can anyone help me out?
Can someone direct me to a 3 level menu with the top level being images....
View 4 Replies View RelatedI'M working on a web page. My main index got a fix menu bar (title bar + menu (buttons with over effects, etc).
I used table to place my content so it would have one big banner with buttons and two iframes that would show two different content.
I worked so far that my main index render the frame with their respective backgrounds all detailled in css, fonts, align etc etc.
Is it possible to create blocks of information, all with the same CSS and then, just making the buttons tell the iframe which content to show ? The back ground will never change, just the content. IS it possible ?
I was wondering if it was possible to program in JavaScript, something that was similar to how cell phones are able to scroll though a character map by the continuous pressing of the same key?
I was thinking of something like, holding down the [alt gr] key and have a change of letter state every time another key is pressed repeatedly. Most importantly, the specific alternative letters can be coded into the base letter.
[Code]....
Does anyone know how to do this, or could someone point me to a good tutorial about how JS deals with key presses?
I have a tight space requirement here the explaination then code sample. I have a row of inputs and a link with a select set in the between in a div. I need to allow multi selection on the select which is the problem. The select must be within the div and when in non-select state set to 1 when the user is to make a selection I expand the select to 10. This causes the div to expand and any thing under to move in kind. I need a way to allow the select to expnad with out moving expanding the parent div.
<script >
function expand(){
mySelect.size=5;
[code]....
I'm kind of at a lose this is my first foray into using a multi-dimensional
array and I've run into a snag. for some reason the second dimension always
seems to end up being the last value of the second dimension of the array
ie: in the case below the conditionArray[[0][1]] always ends up being 6.0
where it should be 1.0. Code:
I'm having a bit of trouble with this script. I'm wondering if someone might help me. What I'm trying to do is to have a multiple image rollover whereby onmouseover, the image's source will cycle through a few pics and stop. I got this part to work fine--it's the onmouseout part that I'm having some difficulties with. I would like everything to be included within one function, instead of two (one for mouseover and one for mouseout). Here is what I have:
View 2 Replies View RelatedWorking on some jquery examples which use the same div id name multi times in a document. I notice only the first div id with the same name animate and the others don't. I would like all of the header id names to animate not one.
[Code]...
Short version: I'm having trouble with "moving subarrays" in a multidimensional associative array.
Long version: (Yes, I know that there's technically no such thing as a js associative array and that I'm actually using a generic object.) This is one of those annoying questions for which significant code can't be shown.
I'm fetching a JSON object from PHP and parsing it as multi-dimensional associative array that comes out with this "structure": obj[regions][variables][years] = value; My presentation logic works fine for that. Year data is presented for each variable, and variables are grouped by region. For reference, if needed, the display is tabular and similar to this:
[Code]...
i'm having the following problem, normaly i work with html css and php but for this to work i need to make a litle javascript function and i'm still kinda new to it. so here is my problem.i'm making a search field where someone has to select some radiobuttons.first it has a selection out of 4 items and then a selection out of like 20 but how do i get the value from the first function in the second?in this case i would like to have the following in function showStreek:
xmlhttp.open("GET","test3.php?l="+land,true);
this line should look like:
xmlhttp.open("GET","test3.php?k="+kleur"l="+land,true);
[code]....
I´m trying to get multiple slide shows on one page (3 beside each other) using JavaScript.
I took the code from http://www.dynamicdrive.com/dynamicindex14/pixelate.htm
for creating the slide show, everything is working fine but I can´t change the code to work with multiple slide shows on one page.
I have a section of javascript that declares a global variable for a few functions, like this incomplete code
Code:
The above, in its full version, changes the text in a textarea. In my php code, if I include the above code above the textarea, it all works as expected.
The problem is that I may have more than one textarea - the number cannot be known beforehand. If I include the above before each textarea, the pointer gets confused as to which string belongs to which textarea since the global variables get redefined many times. In php, this would be a simple problem to solve with a mutildimensional array but, from what I understand, javascript doesn't have such arrays.
Someone can provide a solution that will allow me to use the same block of code over and over in the same file.
I have a database which writes to a webpage. The html has one field showing called client_userid with an id of client (see below)
<tr><td>
<span id="client"><WebObject name=client_userid></WebObject></span>
</td></tr>
The value returned in the table is a 7 digit number eg: 1234567 This web view may have one, a few or a thousand records showing depending on the search criteria. For the life of me I cannot find a script that will pass all returned field values to an array that will allow me to remove duplicates and add a hotlink to the individual number and showing the result in a new view of the original table.
I have found a great bit of javascript that I want to use on my site but I want to use it three times on the same page. If you look at [URL] you see three pictures at the bottom I want to make them change but the first only has four images the second has five and the third has three so I want to use the same code below on them all separatly.
Code:
<script type="text/javascript">
// Flexible Image Slideshow- By JavaScriptKit [URL]
// For this and over 400+ free scripts, visit JavaScript Kit-[URL]
// This notice must stay intact for use
var ultimateshow=new Array()
//ultimateshow[x]=["path to image", "OPTIONAL link for image", "OPTIONAL link target"]
ultimateshow[0]=['images/rotate/tattoos/main-tattoo1.jpg', '', '']
ultimateshow[1]=['images/rotate/tattoos/main-tattoo2.jpg', '', '']
ultimateshow[2]=['images/rotate/tattoos/main-tattoo3.jpg', '', '']
//configure the below 3 variables to set the dimension/background color of the slideshow .....
I am trying to adapt an existing script which returns a list of URLS from my website based on an entry in a search box. I would like to adapt it so that I can enter a value other than the string value "xxx" but so that I can search for "xxx" or "yyy". I can see that the script uses the function GetElementsByName with a Name value. Is there any way that I can change the value of the Name to be '"xxx" or "yyy"' instead of just "xxx" or should I be using a different function?
View 4 Replies View RelatedMulti values in select options. I have a simple select drop down menu here with values for each option that I can capture with Jquery.
[Code]...
I am trying to pre-populate form selections by evaluating a string. I will import a dynamic string later, but wanted to focus on the search function. If the value has a match in the string then write "selected" in the input tag to select it for the viewer. What am I doing wrong?
HTML Code:
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>[code]......
