Javascript Array Question

Dec 22, 2006

I have a DataTable that I created in C# that looks like.

Column1 - Column2 - Column3
1 - a - b
2 - c - d
3 - e - f

Now if I want to get the value of column 3 with id 3 I simply need to
do something like this (pseudo-code):

string value = dt.rows[3]["Column3"].ToString();

Is there a javascript object that mimics this same functionality? I am
going to use my C# DataTable to create a javascript object that I can
use for client-side functionality before posting back to the server.

View 8 Replies

Array In Javascript

Feb 2, 2006

Is it possible in javascript to operate on an array without knowing how mamy
elements it has? What i want to do is sending an array to a script, and this script should
add all values from that array Could you show me a little example how to do this?

View 54 Replies View Related

3d Array In Javascript

Apr 18, 2006

how i can set 3*3 array in javascript i have tried this but didnt work

<Script>
var a[2][2][2]=new array()
<Script>

but it didnt work.

View 10 Replies View Related

Sending An Array From Php To Javascript

Mar 29, 2006

i have made an application in php so that people can make, on the fly, a
form. when they submit the form there is a javascript formvalidation.

because we do not know how many fields there are in the form (it is made on
the fly) i collect all the form fieldnames in an php array and sent it to
the javascript function: Code:

View 5 Replies View Related

A Javascript Array That Can Respond To Changes

Jul 20, 2005

Is it possible to have a JavaScript object that works just like a
standard Array, except that when the array is modified, a function
gets called which can then do some processing on the array?

Like this:
// SpecialArray has a function called Notify
function Notify()
{
// process the array with changes made
}
var myarray = new SpecialArray("zero", "one", "two", "three");
myarray[1] = "ein"; // after this change is made, function "Notify"
is called

I know you can derive a new object from Array, but you cannot directly
override the [] operator.

Can you add a function or event handler to a regular Array object that
gets called when the array changes?

View 2 Replies View Related

Array / Javascript In Firefox

Nov 11, 2004

View 6 Replies View Related

Javascript Array Value To Hidden Box

Sep 29, 2007

how can i take javascript array value to hidden box?

View 1 Replies View Related

Javascript Array Is Not Empty On Creation

Jul 23, 2005

im currently working on a web app which uses heavy javascript. in one
of the functions, a simple array is created using "var admin_types =
new Array();". This array is not empty, it has a length of 0 but
contains one element with the name "clone" and the value

function () { var copy = {}; for (var i in this) { var value = this[i];
try { if (value != null && typeof (value) == "object" && value !=
window && !value.nodeType) { value.clone = Object.clone; copy[i] =
value.clone(); } else { copy[i] = value; } } catch (e) { copy[i] =
value; } } return copy; }

why does this element get created?? The weird thing is that i use a lot
of arrays and this is the only one that has that element.

i tried this in firefox 1.0, ie 5.5 and mozilla 1.7.1 and the element
is in the array for all of them...

View 10 Replies View Related

Javascript Accessing An Array Of Checkboxes

Jan 15, 2006

In my HTML, I have several of the following:

<input type='checkbox' name='right[]' id='right[]' value=Ɔ' />

All are the same except the value is set differently for each one. The
reason for the [] is so I can access the checkbox values as an array on
the processing page (when clicking 'Submit');

However, I want my Javascript code to examine these objects first. My
onclick event handler function (below) is called (I get the 'hi there'
popup), but it does nothing afterward (i.e., neither 'checkbox' alert
appears, and the handler, strangely, seems to return 'true').

I suppose my problem is that I am not specifying the checkbox array
properly. I tried several variations, but I've been working on this
problem alone for several hours and am getting nowhere. Code:

View 9 Replies View Related

Would Like To Pass An Array In To A Javascript Function

Mar 2, 2006

i had write my code by using php language and i would like to pass in an array that generated by using php programming language from a select box through the onchange method.

i had try it but it cant be pass in. how should i code it?

View 7 Replies View Related

Pass A PHP Array To A Javascript Function

Oct 12, 2005

I was wanting to build a javascript error checker function for several forms.
Because each form has different inputs (ie, text, radio, select) i'm trying to figure out a way to pass some dynamic data to the function.

The way i'm currently doing it is by passing a long string to the JS function and then tokenising it into element names. However this is going to get very messy ....

I was thinking that, using PHP, i could build a list of the objects to be checked.

Is it possible to pass a PHP array to a Javascript function ...

So i've got in PHP

$array= {field1,field2,field3}

Which i want to pass (in a some manner)

<form name = 'formName' onsubmit='errorChecker(formName, $array)'

View 2 Replies View Related

Populate TEXTAREA With Array In Javascript

Aug 23, 2006

I have a pre-populated array in a JavaScript. How to populate TEXTAREA field with the text from that array, each entry on different line on page load? Say, value at index 1 will come at line 1; value at index 2 will come at line 2 and so on.

View 3 Replies View Related

Javascript Get Vvariable Names From Array And Then Use

Oct 23, 2007

Say I have some variables setup like so;

<script type='text/javascript'>

</script>

and I want to parse the first array and then within that loop I want to get the variable name from the 'outer' array and then reference the contents of the array with that name... I was trying to do the following but it doesn't work, I'm obviously missing something about transmogrifying the text "form0" into a variable name...

for(f=0;f<panelsArray.length;f++) {

thisPanel = panelsArray[f];
alert(thisPanel);
thisPanelWidth = thisPanel[0]
alert(thisPanelWidth);

}

View 2 Replies View Related

Printing An Array To Screen As Formatted Javascript

Jul 20, 2005

I have a three tier nested array, used to define a map for a javascript
game, and can be edited within the web page. Is there a way I can
generate a visible copy of this array that I can then c&p into a file? I
think the best solution would be to write into a popup window (this
popup would be purely for map development use, so I don't feel worried
by popup blockers, as only myself would be seeing the popup). However, I
have no idea how to:

a) create the string in a form that a html parser can display as
ready-formatted javascript code

b) generate the popup

View 4 Replies View Related

Javascript Array Prototype Functions Voodoo

Nov 4, 2005

I wrote some prototype functions in my code for arrays this is one of them !

Array.prototype.inArray = function(value){
for (var x in this) {
if (this[x] === value) {
return true;
}
}
return false;
};

when I iterate through array .. I get this functions as values in array !!!
can anybody explain this !?!?

View 11 Replies View Related

Internet Explorer Vs. Firefox Javascript Array Performance

Oct 10, 2006

I am trying to complete a javascript application and am having problems
with code similar to that show below.

Much testing has shown that Firefox finishes the code shown in around
0.25 secs but Internet Explorer 6 takes a massive 3.5 secs! Internet
Explorer 7 gets it down to around 2 seconds - but that's still 8 times
slower than Firefox and way unacceptable for my userbase.

Looking through the newsgroups there is some discussion around the
differences between the way the two browsers handle arrays - but a
performance differential such as this is just unbelievably dismal.

Unfortunately I need to continue to use arrays of objects and have to
support the Internet Explorer client base. I have already added
specification of the array size and also removed the use of array
"push"ing - flattening the array is not really an option. Code:

View 3 Replies View Related

Passing A Multi-dimensional Javascript Array Through A Form

Mar 11, 2005

I would like to be able to pass a multi-dimensional Javascript array through a form to a server-side script I am running. Any suggestions as to how to do this? I know how to asign a Javascript variable to a hidden field (basic stuff ), and if it was a single-dimension array I would join() it, but I don't know how to treat a multi-dimensional array. Any suggestions?

View 1 Replies View Related

Create An Associative Array Dynamically Pulling The Index Values From An Array (propertyArray)?

Mar 2, 2009

I want to create an associative array dynamically pulling the index values from an array (propertyArray); Associative array is created inside create function and then returned. But after it is returned, I cant use index names to retrieve values. It returns undefined as below code shows.

Code JavaScript:

var propertyArray=["a","b","c"];
function create(){
var array=[];

[code]....

View 2 Replies View Related

Return Array - C# Code - Connecting To Database And Creating A Array - List

Jan 21, 2011

Modifying my code:

I have this C# code that is connecting to database and creating a array(list)

Code:

I'm trying to pass it to a javascript function so I can then pass it to a silverlight page so I was able to create this easy javascript that show a aleart box on startup of the list(array)

Code:

But I want to do something like this and can't get it:

Code:

View 2 Replies View Related

JQuery :: Submenu From Array - Function ToggleOptions Takes 3 Variables - Target - Array - State

Feb 15, 2011

I am trying to understand somecode. I don't think I am understanding everything correctly. Can someone confirm or add to my understanding?

Here is the code, below is my explanation:

- CODE 1 - is saying if the the class subnav_dd is called on an anchor tag on a li, then make the function in the if statement "live". (Live in a sense binds the function to the condition, but unlike bind it allows the condition to be used more then once. ) So if the class subnav_dd is the parent, and has a class of .dis then prevent anything below it from firing. CSS - If code 1 is true, then I will only get the first li to fire, the remaining ones will not.

- CODE 2 - This one is a little tricky. Function ToggleOptions takes 3 variables (target, array, state). The condition is if the div subnav + target have siblings, then check to see how many siblings are there. Put the amount of siblings into an array, then check the state of each sibling. I don't completely the rest of it.

I think if the div subnav is called and something is found in the array then the class dis is either added or removed. Then what? I don't understand why I still need the else that adds a class to #subnav_ +.target

View 1 Replies View Related

Correct Syntax For An Nested Array Where Each Array Element Has 3 Elements, A Number And Two Text Strings?

Sep 17, 2010

What is the correct syntax for an nested array where each array element has 3 elements, a number and two text strings?

Code:

array = ['1, Old Man, Old Man','2 Black Sheep, Black Sheep',....]

should the text strings be in double quotes("")?

Code:

array = ['1, "Old Man", "Old Man"','2 "Black Sheep", "Black Sheep"',....]

View 3 Replies View Related

Sorting Objects Inside Of Multidiminsional Array For Main Array?

Apr 25, 2011

I am really hoping someone is willing to take the time to read this post and take a minute to take a look at my code. What is happening is there are some matches for a script I made and then an area for segments during an event. If you notice on the segment part of the form is that there is a dropdown that asks for where in the event that segment needs to go. With the Introduction or the different numbered matches. What I need to happen for a subArray I need it to take the introduction, all the matches, and all the segments and order them accordingly. With the introduction first, the matches in order based off there match number and then the segments in between the introduction or matches based off the user's input.[URL]..

View 7 Replies View Related

Convert Php Array To Array And Populate Form Text Fields

Nov 3, 2010

I am working on a page where the user will select a location from a dynamically generated dropdown list. I was able to create the php multidimensional array (tested and working) from a MySql database using the users information at login, but I'm having problems converting it to a javascript multidimensional array. I need to be able to access variables that I can pass to a number of text fields within an html form.For instance, if a user belongs to a company with multiple addresses, I need to be able to let them select the address they need to prepopulate specific text fields.

View 9 Replies View Related

Use Array.slice To Divide The Array Into Two Equal Sized Arrays?

Jul 21, 2011

is this correct

var mid = math.floor((0 + array.length)/2)

from here you could use array.slice to divide the array into two equal sized arrays?

View 6 Replies View Related

Comparing Array Values To Select Unique Array Elements?

Apr 10, 2010

This one is throwing me off! Either I am making a stupid mistake or I'm doing it totally wrong I have an array, and I am trying to select unique values from it and assign it to another array. Here is the code:

Code:
var flag;
for (i=0;i<=pdfs.length-1;i++)
{
flag = 1;
for (j=0;j<=pdfs2.length-1;j++)

[Code]...

The problem is that the if (pdfs2[j] == pdfs[i]) statement ends up never being true. There are URL's to pdf files in the array. On the other side, if there is a much easier way to select unique values from an array, please feel free to point it out.

View 2 Replies View Related

Prototype To Sort An Associative Array On The Array Key (in Ascending Order)

Sep 1, 2010

I am building a customised javascript prototype to sort an associative array on the array key (in ascending order). Basically, I am separating the array keys into a separate array and then using .sort() to sort the keys and then reassembling the original associative array elements according to the sorted keys array.

The sorting works ok except that when I run the test code below, the outputed sorted associative array has an extra element at the end of the array whose key is the name of the prototype function and the value for that element is the function code itself. Obviously I am misunderstanding something about associative arrays or how javascript prototypes work.

[Code]...

View 8 Replies View Related