Put Preexisting Items In To An Array?
Feb 5, 2009
I have a site that uses bullet points. I am able to add and delete these bullets as needed. The problem i face is every time I add a new bullet and update the page all the bullets that are already there are saved again. for example lets say I have in my list:
[Code]...
So I was thinking that I could get an array of all the existing bullets and then say if the new bullet is not part of the array update it. If anyone else has any other ideas of how i could make this work I am glad to hear them. If you need code just let me know.
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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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Nov 29, 2006
Right now, the array items print out without spaces like "Jane,John,Mary,Sue". I need to be able to work with the items individually so I can format them so they read "Jane, John, Mary and Sue". I thought I'd be able to do something like v[i] + ", " but I get an "undefined" when I try to alert for v[i]. Can someone point me in the right direction? Code:
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Apr 17, 2009
I have a script to display 2 dropdown lists. Selecting the first list will populate the second with items. But what I want then is, items in the second are already in a array (this works) they also have a code and this code I want to display in a text input, when selecting an specific item in the second list. (I can display the item selected in the second list (but want the code behind that item to be displayed in the text field). Function assignprojectnum shows the item in the text field now.
Here is the code I use.
Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
[code]....
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May 11, 2010
My website has a flash animation I'd like to replace with a jQuery animation [URL]. I'm trying to create a dynamic statement to grab an array of words from an XML file and loop through replacing the word in a <span> with a random item. Would like it to loop continuously while the page is displayed. The HTML statement is:
<p style="text-align: center; font-size: 2em; font-weight: bold; margin: .5em,0,.5em,0;">
<span>Shred your </span><span id="indexShredItem">paper</span><span>, not your nerves.™</span>
[Code]....
It works great once, but I can't get it to loop. I've tried "for" and "while" loops (no loop attempt is in the script above).
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Aug 16, 2010
I want to create an array of list items that will shuffle randomly when a user refreshes the page. I also only want to display 3 items at at time, but when the browser refreshes it will show 3 random ones each time.
I've seen shuffle plugins, but they work if someone clicks on a button to shuffle the items, which I don't want to do. I want it to shuffle randomly on reload of the page.
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Feb 18, 2010
I want to remove items in an array by passing index values. The index values may have 1 or more values. For example, i have the following array
Code:
var arr1=new Array("aa","bb","cc","dd","ee","ff");
var index = new Array();
index[] = 3;
index[] = 5
[Code]...
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Feb 3, 2009
I am dynamically creating page elements by looping through an array and adding them to the DOM. Each element has an action that should be performed when it is clicked. This action (or a reference to it) determined by the current array value as well. Because the code called in the onclick handler is not executed until the event fires, the value of the current array item (at the time the onclick handler is attached) is not preserved resulting in the expected behavior not happening.Here is an extremely simplified example of the problem I'm facing:
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[code]....
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Aug 15, 2011
In our ordering system, we have to type in various values for several items at a time. This means in one single form, for one order, we could be typing in a batch number 4 or 5 times. I can valiadate this easy enough with Javascript when there is only 1 line. But what if there is more than 1?
With PHP you add [] to the end of the form element's name. But how do I get javascript to work with this?
Code:
Basically, the batch number, expiry date and pallet/box number is mandetory. If they arn't entered, it needs to fail (return false). It doesn't seem to be doing anything, just moving on to the next part which is checking other parts of the form which isn't repeated.
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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 10, 2010
version of Apycom's jQuery menu; you can find itat http://apycom.com/ and it is looking really good.I have uploaded files, and published it on a test site - www.flexin.beUnfortunately, some of the submenus starting from the second that haschildren elements, it adds the item on the top level in InternetExplorer.Does anyone on this list has any experience with this library?
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Feb 25, 2011
I have an ASP.net page where I load a record set server side and upload it into a listbox. I'm trying to do all the movement functionalities of the listbox items client side. Specifically, I'm trying to figure out how to copy selected listbox items from one listbox to another -- on button click. I've searched for a while, but every example that I found moves the actual item into another listbox, I just want to copy the selected item to another listbox.
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Apr 23, 2009
Can we create menu items, sub menu items using javascript coding.
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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]....
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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:
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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
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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"',....]
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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]..
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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.
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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?
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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.
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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]...
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Nov 19, 2011
I want to have a simple code such that some data is stored in array. When we create a search box it has to give suggestions from the data stored in array.
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May 6, 2007
I'd like to reorganize the third, fourth, fifth and sixth, as well as any
elements thereafter in an array in random order:
var a = new Array('first','second','third','fourth','fifth','s ixth','etc')
In other words, the first, second and third element should remain in
position 0, 1 and 2, while the fourth, fifth and sixth, etc. should appear
in random order.
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Mar 26, 2010
I'm trying to grab values from a set of arrays based on the value returned by my select box.
**Caveat - this is not an area I have any real experience with**
My arrays look like:
Code JavaScript:
I then need to test for each, then associate with one of my fees arrays, then grab each of the values in the array and write those values to elements within my page.
I'm then doing this to evaluate for each degree
Code JavaScript:
I need to first figure out how best to import all of these 60+ arrays and then in each of my conditions pull out each value and write to my page.
There is a unique 1 to 1 relationship between each degree and array so I can't consolidate as the values for each degree differ slightly.
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Mar 20, 2009
I am accepting an array, and a value of a variable to perform multiplication against my array, then write the product back into the array.
[Code]...
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