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.
I have been cracking my head about this , anyone have suggestion is
much appreciated.
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Jul 23, 2005
if (123 > 33) will return true
and
if ("123" > 33) will return true
So my question is, if the above behaviors are the same?? If string is
a number, and compare with another number, it will be the same behavior as compare 2 numbers?
In this case, it is comparing 2 strings that are numbers, so they are
string comparisons here. correct?
if ("123" > "33") will return true
In this case, "33a" is not a number, that's why when it compare with
another number, it always return false. correct?
if ("33a" > 33) will return false...
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Jan 22, 2011
why the string comparison test doesn't work in this javascript function? It works if you use just text between the currentItem div tags, but not when you use html for an image. I even tried to use iso characters instead of angle brackets, as in "<img src=expand.png></img>" and still no dice. Why not?
Is it because of the way innerHTML manages html and it's not really a string? Is it because it doesn't have all the tags and some other representation?
Code:
<html>
<head></head>
<body>
[Code].....
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Apr 13, 2011
I'm still pretty new to javascript and dom, but have been coding with other languages for a while.When I try to compare a string to a .nodeValue it always fails, even if they are same. From what I've read typecasting is automatic in javascript or is this incorrect? For instance
var myGreet = "Hello";
var myFrag = myXML.lastChild.firstChild.firstChild.childNodes[0].nodeValue; returns Hello
if(myGreet == myFrag){ always returns false
alert(myFrag);
}
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Mar 16, 2009
I'm trying to compare an array to a variable and see if it has the same value then output the second part of the array:
<script language="javascript">
var photoCaptionID0 = "13006";
var photoCaptionID1 = "24018";
var photoCaptionID2 = "13002";
[Code]....
So using this example. If any of the first section in the array captionID (24001, 13001, etc) has the same value as photoCaptionID0, then print the second part of captionID (Item 1, Item 2, etc).
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Feb 7, 2009
What I am trying to do is build a script that will read through an array of words and compare another word to the list to find where it would be placed alphabetically; between which two words would my word go.
Here is what I have come up with so far which doesn't work with words shorter than the shortest word in my list, or words spelled like the shortest word in my list except having a few more characters, plus more various issues.
Example: My list
If I use keywords "apex," or "as", this script fails.
What can I do to fix my code...
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Aug 30, 2010
I have an array like this:
I need to compare these array items to my site div id's and make an onblur functionality that changes the input field value.
It does not change the selected input field value(this.value). And it only alerts when blurring from the input field that is first in the array(id1). If i click to the input field id="id2" it does not alarm?
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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?
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May 11, 2009
Why when i compare input value with array, he match only the first input.
This is my code:
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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]'+);
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Mar 18, 2011
I get strings in this format:
([{"result":"-1","message":"Error","target":""},{"result":"-2","message":"Access Denied","target":""}])
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?
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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.
Bad: .css
Good: .css
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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:
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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.
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Apr 26, 2011
I have code...
how can I convert these to an array so I can loop through the values?
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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.
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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.
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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
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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?
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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
?
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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...
inProperCase(" madam i'm adam ");
...and you get...
" Madam I'm Adam "
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); ...
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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]....
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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
);
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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.
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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(","); )
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Dec 3, 2004
I used arrays in javascript.. The array contains duplicate entries... I need a new array with only unique entries...
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