Can Associative Array Have This Structure
Nov 24, 2010Something like this:
['level1key':['level2key:'value']]
That is the value itself is any object.
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Create An Associative Array Dynamically Pulling The Index Values From An Array (propertyArray)?
Mar 2, 2009I 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]....
Prototype To Sort An Associative Array On The Array Key (in Ascending Order)
Sep 1, 2010I 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]...
[associative Array] Would You Do That?
Aug 20, 2009New to javascript here. I'm trying to do something that would be very easy to do in php, but is quite hard in javascrpit due to the lack of support of associative array.
[Code]...
push() to add clickedElementId as a value associated to a numeric key, but then how would you remove a specific element from the array? How would you approach such a typical algo in javascript? Regards,
Object As Key For Associative Array
Jul 23, 2005Is it possible to have an Object as the key for an Associative array
like in the following example....
function Obj(var1, var2)
{
this.var1 = var1;
this.var1 = var1;
}
function test() {
var sectionArray = new Array();
var obj = new Obj("c","k");
var obj2 = new Obj("3","n");
var obj3 = new Obj("v","qk");
sectionArray[obj] = "king";
sectionArray[obj2] = "queen";
sectionArray[obj3] = "joker";
alert(sectionArray[obj]);
}
This does not give any error but the alert says "joker" instead of
"king". Is there anything wrong with my code or is an Object something
that just can not be used as a key.
If it is the latter can someone please suggest another way for me to do
it? Can I use a concatenated String instead of an object? My only
problem then is how would I extract the values from the String, does
JavaScript have a tokenizer method like Java?
Associative Array Problem
Jul 20, 2005I am having a problem with this test html below. When I enter a correct
city I keep getting an "Object expected" error on the town field....
Check If Key Is Defined In Associative Array
Jul 23, 2005How can I check if a key is defined in an associative array?
var users = new array();
users["joe"] = "Joe Blow";
users["john"] = "John Doe";
users["jane"] = "Jane Doe";
function isUser (userID)
{
if (?????)
{ alert ("This is a valid ID"); }
else
}
But what goes in place of the ????
JQuery :: Associative Array To JSON?
Jun 21, 2009I have been trying to figure out how I could go from an associative array to JSON. Is there a function for this?
View 10 Replies View RelatedAssociative Array - Pass Id And Value To The Next Page
Aug 18, 2009I m using an AutoComplete Textbox..!! i want to pass id and value to the next page..!!
[Code]...
JQuery :: MySQL PHP Associative Array To Via JSON?
Jun 5, 2009Your table-driven application has a MySQL table on the server side and you want a Javascript associative array on the client side to do rapid look-ups.For example: My application uses the value selected from the form’s drop-down menu to choose which other form fields to hide or show. This choice of a 'Long Form' is table-driven from product data in a MySQL table.
Convert the MySQL table to an associative array in JavaScript.I am using the jQuery library to manage the presentation and form validation on the client side and PHP and MySQL on the server side.Since a JavaScript Object is an associative array and the MySQL table is being used as a look-up table (associative array) I use the PHP function json_encode to create a JSON string - JSON is JavaScript Object Notation - on the server which is then evaluated as a JavaScript Object on the client. The two parts (server and client) of the code are listed below.All very straightforward then. So why the blog?This is what I do (here's the PHP code):
do { $key = $row['ProductKind'];
$value = ($row['LongForm'] ? True : False);
$arr[$key] = $value;
[code]...
As a newcomer to jQuery this is a good opportunity to show my appreciation to John Resig and the people that have contributed to the jQuery library ... not forgetting those who have integrated all the MySQL and JSON stuff into PHP. It's all very neat ... when you get to understand it!You could just eval(data) to turn the JSON string into a JavaScript Object (a.k.a. associative array), but JSON.parse protects your code against evaluating malicious scripts that could be embedded in the JSON string. This function is found in the json2.js downloadable until included in native browser JavaScript engines.The PHP Booleans translate automatically into JavaScript Boolean types.
[Skip this: My application has a MySQL table of product categories that tell me whether I need to present the administrator with a long form or a short form in the HTML. So, as products are added over time, I want to the administrator to choose whether a new product category can take the short form plus some default values or will require the explicit input of all product values in the long form. As the administrator assigns a category to a new product - and changes his mind half a dozen times - I don’t want to keep on going to the server to do the look-up but want to have the table in Javascript to keep the form presentation responsive. Also, the MySQL tables are on a third party’s server remote from the web server.]
JQuery :: Store An Associative Array In A Cookie?
May 21, 2009I need a way to store an associative array in a cookie. Or maybe JSON encoded string. I am using jquery.
var cookie=[];
cookie["product_1"]=[];
cookie["product_1"][cookie["product_1"].length]=12;
$.cookie('uploads', $.toJSON(cookie), { path: '/', expires: 10 });
Displaying An Associative Array Into An Html Table?
Mar 19, 2011am just trying to learn javascript and my friend gave me a little assignment to try and figure out. i am having trouble figuring it outbasically i just want to display the information in my associative array, into an html table.
var NFC_east = new Array();
NFC_east[0]=["Giants", 16, 0, "Eli Manning"];
NFC_east[1]=["Cowboys", 0, 16, "Tony Romo"];
[code]....
Create A Multi-dimensional Associative Array?
May 21, 2010I'm trying to create a multi-dimensional associative array that has some of its data created dynamically. The code I've currently got is as follows (using JQuery to retrieve form element values):
Code JavaScript:
var data = {
label: $('#label').val(),
child_float: function() {
[code]....
.. if its values were not being created dynamically. However as you can tell that isn't what is being generated at the moment, as there's no opening/closing brace before/after the child_float's member variables. Any ideas what changes I need to make in order make the child_float behave as intended?
Retrieve Value From Multi-dim Associative Array Using Only One String As The Key?
Jul 20, 2011Lets assume the following object
Code:
var x = {
y: {
z: 10
}
} ;
Next, I need to retrieve the value '10', but the only thing I have is one string as a key For example (this doesn't work):
Code:
var str = '[y][z]' ; // or 'y.z'??
alert(x[str]) ; // should alert 10
Can this be done using a single string as input for x ?
UPDATE: a solution which comes close to what I was looking for is
Code:
var str = "x['y']['z']" ;
alert(eval(str));
Sorting An Associative Array Keys Based On Values
Jul 23, 2005I have an associative array like this:
arr[x1]=30; arr[x2]=20;arr[x3]=40;arr[x4]=10;
I want the sort function to sort keys in ascending order of the values
on the right hand side with the following result:
x4,x2,x1,x3
Create An Associative Array From Within The Loop That Sets Up My Html Table?
Jan 27, 2009I'm trying to create an associative array in javascript from within the loop that sets up my html table. I can't get my head around assigning the associative key-value pair (probably not the best way of putting it). I've written the below in php. What's the equivalent in javascript? The => is the part that's baffling me.
PHP Code:
$test_array[] = array ([INDENT]'seller_id'=>$seller_details[$column]['seller_id'],
'products_id' => $item_details[$idval]['products_id'],
'shipping_price' =>$item_details[$idval]['shipping_price'])[/INDENT]
Trouble Changing My Array To Include For/in Structure......
Mar 25, 2007hey guys i am having trouble changing my array code to include a 'for/ in' structure the code i am trying to change is below:
<script type="text/javascript">
var contents = new Array(3)
for(k=0;k<3;k++){
contents[k] = new Array(2)
}
contents[0][0]="Player Name"
contents[0][1]="Player Number"
contents[1][0]="Shay Given"
contents[1][1]="1"
contents[2][0]="Scott Parker"
contents[2][1]="6"
function changeContent()
{
var r=document.getElementById('myTable').rows
for(i=0; i<r.length; i++){
var x = r[i].cells
for(j=0; j<x.length; j++){
x[j].innerHTML = contents[i][j]
}
}
}
the code i am using currently using changes the contents of a table in
my main page, the code for the table is below:
Form Elements And Document Models - Structure The Input Names To Get An Array
May 2, 2011I'm still struggling with creating a properly formatted form. This problem it two-fold. The first part isn't strictly a javascript problem, but I've included it here because it relates to the second part, which is:
1. Given the form below, how should I structure the input names to get an array like that at bottom?
2. The scripts are used to provide running totals and subtotals. They're fun - try them! But how should I modify these scripts so that they can continue to work with the amended naming policy?
[Code]...
Associative Multidimensional Arrays
Jul 23, 2005Is there any way to associate name/value pairs during an array initialization? Like so:
sType = "funFilter"
filterTypeInfo = [];
filterTypeInfo[sType] = new Array("type" : sType);
I can do it using this:
sType = "String"
filterTypeInfo = [];
filterTypeInfo[sType] = [];
filterTypeInfo[sType]["type"] = sType;
but that seems rather cludgy. I want to use array objects not Object objects as described here:
Netscape & Associative Arrays
Jul 20, 2005I would like to step through all the key-value pairs in an associative
array. I'm trying:
for (var i=0 in hashOfItems) { // go through all keys in the hash
hashOfItems
// do sth
}
which works fine in Internet Explorer but does not seem to be
recognised in Netscape Navigator. What is the right way to write this?
Structure And Effeciency On Simple Function ...
Jul 23, 2005Can this be refined further to be more efficient?
function shout()
{
if (isNaN(document.form1.entry.value)==true) {
alert("please only enter numbers for an answer")}
else
{
alert("the new number is: "+(+document.form1.entry.value+5))}
}
also what would be the correct structure as to make the script more legible
to regular and proficient writers of JS?
Generate Tree Structure Using Database
Jul 23, 2005I'm trying to develop a tree structure using javascript. The node values of
the tree are generating from a mysql table depending on login. The tree
structure contains 3 sub levels.
I developed static HTML tree using http://www.treeview.net. now i need to
generate this tree dynamically.
JQuery :: Getting Td Value - In Complex Table Structure
Jan 3, 2012I have a nested listview in my app which creates table inside table at runtimei need to get value of td from second tables tr where i have row number of first tables tr?
<listview1>
JQuery :: Change A Document Structure ?
Jul 30, 2010Is it possible to change a document structure definitely using JQuery ? I used .html() but after refreshing the page the changes I've done disappeared and were replaced by the default contents
View 2 Replies View RelatedLoading HTML Structure Quickly ?
Jul 29, 2009I am trying to do the following without html frames.
-Let's say i a html file which contains the structure of a calendar (table, rows, cells, etc)
-Have javascript load the contents of the html file into the page without frames and without disturbing the previous content.
So the advantage is that i would not have to use javascript to create the structure of the calendar but instead to load it so that javascript only have to fill the contents of the calendar.
Proper Structure When Documenting Testing?
Nov 6, 2011So firstly this is likely not in the right place at all, as it's a bit OT but I figured it's the best place to ask. I have to document 4 different tests to my code; what structure should I take when doing this?
I was thinking:
* State the aim of the test
* State the inputs, and what I believe the output should be.
* State the actual output, and whether this positively or negatively affect my code.
