# Using A String As A Pointer To An Array?

Apr 26, 2011

So i've written up the code to do a lightbox esque overlay image gallery. everything is working smooth and fine. The only concern is that I have the following:

lets say that I have a page that has multiple galleries. Obviously I would have to make each literal array with the gallery data different names, ex:

var _gallery1 = {
'images': [
{ 'id' : 1, 'src' : "" }
]

[Code]....

obviously "galVariable" would be undefined... as i'm trying to get "_gallery2.images" but trying to use "galVariable" to point to "_gallery2"

I'm familiar with solving a problem like this in PHP, not so much javascript. is there a JS function that can be used to ensure that it's using whatever "galVariable" equals to, and then that array's content is? Or is there a different way to go on about this.

## Iterate Array And Grab X Numbers Based On Pointer?

Jul 1, 2009

I'm trying to figure out how to do this via Javascript.

Lets say I have an array like so:

var myArray = [11, 33, 44, 23, 32, 43];
var finalArray = new Array();

And I have the following variables

var lastNumber = 33;
var getNext = 2;

I want to use the lastNumber for a starting point in the array and then based on getNext, grab the next x numbers that getNext specifies and shove into finalArray.

That case moves forward in the array.

Second case would be the opposite, get the previous x numbers based on getPrevious in the array. So I'd start at lastNumber and then grab x numbers before it based on getPrevious.

var lastNumber = 33;
var getPrevious = 2;

I'm not sure if you can traverse backwards in JavaScript. But more importantly I'm not sure how to point to lets say 33. How can I do myArray[1] essentially based on I'm pointing to 33 and then how can I grab the next x in myArray ?

## Need To Display Id Of The Element Under The Pointer Below The Current Pointer Location

Apr 21, 2007

Is there a way of displaying the id of the element under the pointer ?

Please dont ask why I need it, but I do, i found tools that needs
installation that provide the same funcitonality. However, I would
like to turn on this feature using a flag in my url. Something like
debug=1.

## Convert String Into Array - Break Apart A String Into Characters

Jan 27, 2010

Is it possible to break apart a string into characters, be it a word or a sentence, and store each individual character in an array?

Jun 29, 2011

What am I doing wrong I want to add an Array to a string, but the alert won't write the array?

Code JavaScript:
var placestosee = ['newyork','people','laundry','stores'];
alert('One place to see is the'+'placestosee[2]'+);

## Process String Formatted As Array Into Array?

Mar 18, 2011

I get strings in this format:

this string will evaluate to a 2D array if I do this:var array = eval(string);But eval is not very safe.Is there a way to achieve the same effect (turn that string into 2d array) without using eval function?And I have no control over what string I am given, so will have to process this kind of a string =Right now I am thinking of writing a custom function which will split the string and then split again etc, but is there already something that can do this job?

## JQuery :: Convert A String Version Of A Json Array To An Actual Json Array

Jan 5, 2010

How I can convert a string to a json array.

start code:

The problem is that .css treats snip[1] as a string but I need it to handle it as a json array.

Good: .css

## String Value IS Array Name ?

Apr 27, 2010

I have an array:

I have a string:

I would like to use the value of array_string (array_123) as an array to parse out the values of it. But this isn't working:

## Compare String In Array

Jun 12, 2007

I need some advice regarding wrote a javascript function.
The function purpose is to check the variable "selectedSeat",

for e.g if the selectedSeat value is

var selectedSeat = "A:01|A:03|A:05|B:01|B:02|B:03";
var selectedArray = selectedSeat.split("|");

because row A is not in sequence , i will display alert box to
user,but row B is in sequence is ok.

Main purpose of function is check if the row is in the sequence.
much appreciated.

## Split A String To An Array?

Apr 26, 2011

I have code...

how can I convert these to an array so I can loop through the values?

## Using An Array-string As An Object

Feb 27, 2010

What I'm trying to do, I think, is to use elements of an array as a part of an object. Here's a lil' code snippet:

Code:

I'm trying to insert each of the elements of the katMusik-array into the checked-line, thus checking the checkboxes with those names. However, it doesn't seem to work.

## Js String Creation From An Array

May 7, 2011

I am getting a string with the value of the clicked button from an array and some other select field values that are listed in the same set of mysql results as the clicked button.At the end of the script the page is redirected to in the script mentioned page with following string:process.php?value=1&bs=2&ad=3&ns=4&wt=5&in=6
Is it possible to make locationstring variable global and in a single line in order to be able to use the full string in other scripts or is there another solution.

## Assoc Array Key Into String?

Mar 9, 2010

I'm trying to turn an associative array key into a string. I know I can do that in php with a foreach loop like foreach (\$array as \$key => \$value) and then I can do whatever I want with the key. I want to be able to loop through a javascript array using a for in loop and test to see if the key matches part of the name attribute of some inputsIs there a way to do this? I looked online and I found a way to turn a string into a variable name but not the reverse

## Convert String In To Array?

May 24, 2011

I need to convert a string

lalaw|lalaw1|lalaw2|lalaw3

in to Array

The values I have in variable "tables".I want to create variable list which takes values from "tables".Than I want to split this, and put each value in to new array: I've started with:

var list = "tables";
var listArray = list.split("|");
for(i=0; i < listArray.length;i++)[code].....

//? how to put now values in to array?

## Recognize Number Inner A String's Array

Jun 12, 2007

if I have an array where the number are write in string format, how can I recognize when a string is in realty a number? example if I have this:

"50"
"house"
"light"
"100blue"
"yellow20"
"-100"
"20,5"

how can with a cicle to extract only:

50
-100
20,5

?

## Updating String/array Items

Oct 16, 2007

I'm not entirely familiar with the norms and standard libraries of
JavaScript so if the answer to this is yesterday's news, please ignore.

I'm trying to write a simple text formatting function to make headings
proper case -- i.e. first letter of words capitalized.

I first tried this...

function inProperCase(s)
{
var result, i, k;
i = 0; result = s.toLowerCase();
while ((k = result.indexOf(' ', i)) -1) {
if (k - i 0) {
result[i] = result[i].toUpperCase();
}
i = k + 1;
}
if (result.length - i 1) {
result[i] = result[i].toUpperCase();
}
return result;
}

...but it didn't work. To my amazement, you cannot set a character in a
string by accessing that character with an index, like so:

s[i] = ch;

Must be because JavaScript strings are "Immutable" or "EtchedInStone" or
something. (Just kidding, no flames, please. I'm sure it is more
efficient.)

The only thing I could come up with was this (with some details, like the
"compound" while predicate, modified into a more readable form after being
called a "C-bigot" by a friend :)) which seems pretty heavy-handed with all
the string slicing and concatting:

function inProperCase(s)
{
var result = s.toLowerCase(),
i = 0, k = result.indexOf(' ', i);
while (k -1) {
if (k - i 0) {
result = result.substring(0, i) +
result[i].toUpperCase() +
result.substring(i+1, result.length);
}
i = k + 1;
k = result.indexOf(' ', i);
}
if (result.length - i 1) {
result = result.substring(0, i) +
result[i].toUpperCase() +
result.substring(i+1, result.length);
}
return result;
}

You call this as...

...and you get...

Any suggestions for making this a bit more elegant?

BTW You may point me to a "library" with a super-efficient implementation
of this function, but that is not the point. My issue is, how do we update
single characters in a string (or single items in an array) in JavaScript?
Is it something like...

s.wouldYouCareToUpdateThisChar(i, ch); // :D (just kidding, calm
down...)

-or-

s.setCharAt(i, ch); ...

## JQuery :: Checkboxes Array To String?

Sep 17, 2011

I've searched on the form and found answers but I cant get it fix for me. want to make a form with multiple rows with checkboxes. Firt I did it in PHP and it worked but I want to use Jquery. How can I get the checked checkboxes to a string?It thought it would be something like this (found it on this site):

var test = \$(':checkbox').map(function() {
return this.id;
}).get().join(',');

[code]....

## JQuery :: String To Array Parsing

Aug 11, 2010

How can I split a piece of text like the following :

/mysite/subSection

into an array like the following :
array(
[0] => mysite
[1] => subSection
);

## Searching For A String Inside Of An Array?

Dec 13, 2011

I am trying to search an array for a string and then if it is found alert it. I have found examples of how to iterate the array and how to use .IndexOf to return a true false statement as to whether the array includes the string, but i don't know what to do after that and how to display the string if its found.

## String Convert To A Object Array ?

Dec 10, 2009

I have a String formated in such as the javascript format

May I know is it posible to directly convert to var array?

Example:

But it look not work for me...

How can I do that? ( without using split function example var data = respond.split(","); )

## Find And Replace String In An Array

Dec 3, 2004

I used arrays in javascript.. The array contains duplicate entries... I need a new array with only unique entries...

## Force Js Array Keys As String() Not Int()

Jul 8, 2011

Given a JavaScript "array" (ok, so really they are "objects" but it's being treated as an array...) in the format

HTML Code:
var patient_code = "0"
var question_id = "1000";
HTML Code:
var fake_data_array = new Array();
[Code]...

What's happening is, '1000', '1001', '1003', '1004' are being cast as integers, not strings, and it's "filling in" the first ~999 keys as 'undefined' so the length is returning something like 1005, not 7. I'm manually writing the arrays now, and will eventually be building this massive js array from a collection of existing PHP arrays. Is there a way to forcibly cast the values as strings?

## Can't Assign Value To Specific String (array)

Aug 15, 2011

I have a string and I can return say, the fourth letter with output[3], but i can't assign a value to it for some reason[code]...

## JQuery :: Replaceall Function For A String Or Array?

Mar 1, 2011

Is there a replaceall function for a string or array?

How would it be used?

## JQuery :: Use String As An Array To Make \$.each For Iteration?

Jan 11, 2011

I get a XmlHttpRequest responseText from a AJAX JSON call. This is a string. I created an example:

var testString = "{'desc':'text1','name':'text2'}";
\$.each(testString, function(key, value) {
});

[Code].....

Instead I get every char of the string each in one alert message. How can I transform the String to an Array, or get in this case the two key-value pairs?

## Parsing A Response Object That Contains String Array

Aug 27, 2010

I have a string array in a class file that contains 5 values, which I need to display on the jsp page. but when I send it to the javascript it prints [Ljava.lang.String;@104f8b8 .what do i do about it. I am a new to javascript. Is there a way to get my array data from the response object.