I know almost nothing about javascript... I am a designer. That being said, I need to code a zip code search form. There will be 2 or 3 different pages a user could get to depending on which zip code they enter. This is what I "borrowed" so far...
If I had 12 element divs, how could I make a toggle function that work for all of them?
<div id = "element1"> <div class="question">1. Who wrote the book James and the Giant Peach?</div> <div class="answer"><img src="images/cover.gif" class="top"/><p>Ronald Dahl</p></div> </div>
Currently we have two forms on a single page. This is our jQuery
[Code]...
I've spent quite awhile reading documentation, how-to's etc, but I can' figure out how I can modify our jQuery so that we don't have a validate routine for each form. This is not a big deal for two forms, but some of our pages have five and more forms, so the jQuery would start to get long.
Has anyone now how to simplify the following expression by avoiding
using attr("id") alert($("#"+$(obj).attr("id")+"~p:last").attr("id")); I need this because not every image could have an id. <script language="javascript" type="text/javascript"> function ExpandCollapseOnLeftPanel(obj) { if ($(obj).attr("src") == "/Content/Images/arrow_bot.gif") { // [Code]...
var el = document.createElement("iframe"); el.setAttribute('id', 'ifrm'); document.body.appendChild(el); el.setAttribute('height', 250);
[Code].....
And am putting it between <script type="text/javascript"> and </script> tags in the <body> section of my site. But, it only works in certain areas of the page.
I have a javascript that I found for an iphone style menu. It works and allows me to click through the menu as long as it is within the list system. If I try to create an external link to a webpage. It doesn't load anything. Here is the code let me know if anyone knows the trick so I can link out. Below is the javascript used to create the flowing menu system. Let me know if you need the rest of the .css and html.
(function() { var animateX = -20; var animateInterval = 24; var currentPage = null; var currentDialog = null; var currentWidth = 0; var currentHash = location.hash; var hashPrefix = "#_"; var pageHistory = []; [Code]...
I've noticed that IE apparently has a horrible implementation of the array object, since traversing one with as few as 1000 items it tends to pop up a dialog informing the user that the script is taking too long. I tried splitting the array into a 10x100 two-dimensional array as well as changing the array to a linked list, but neither improved the code's efficiency sufficiently. Can anyone suggest methods for optimizing array efficiency, or some other workaround for yet another one of Bill Gates' blunders?
I have a web document created by a script and instead of going back to the db I choose to either create an array to iterate through or xml to parse through.
So, my question is: What are the trade offs between using an array to load data from or an xml structure?
My array would look like:
myarray = [[],[],[],[]]
My xml like:
<xml> <data> <a></a><b></b> </data> </xml>
I would use js to iterate or getElementByTagName to find data. I am thinking the page would load faster using xml, and then the user may not even use that functionality. In all cases I have to load the array to memory.
I am with XHTML and CSS as much do I have to learn in JavaScript programming. I’m just beginning to understand and modify the DOM and I ran into something that I couldn’t find a solution for after some extensive search. I have this function:
if(document.getElementById && document.createElement) { function addflags() { var children = document.getElementById('pagelist').childNodes; for(var i = 0; i < children.length; i++) { children[0].className = 'bulgaria' children[1].className = 'england' children[2].className = 'italy' children[3].className = 'sweden' } } window. }
The XHTML is an unordered list with 4 list items and sub lists in those list items (plus links in each li) and I want to add a country flag (set as background image in the CSS) to the direct children of the ul (the first level list items).
Now I discovered that Firefox is only reacting to odd array numbers, i.e. children[1], 3, 5, and 7 (the even numbers have "no properties") while IE is applying the classes correctly(?) as intended above (0,1,2,3).
At which point did I go wrong? Sorry if this is a real stupid question but I’m pretty new in this field and my researches didn’t bring any acceptable results.
Is what I'm doing the right approach to creating an array of arrays? I have an external datafile with several employees' records. They are stored in an array with each element of the array being the complete employee record, ie: name, date of hire, etc., etc. These attributes are delimited by a :. I'm trying to separate these attributes while keeping the original array intact. That way I can access these attributes and validate whether or not an instance of the employee object will occur. There are too many records to create this from the start, so I'm trying to implement a for loop to do it for me. This is what I tried: datafile is the name of the original array of employees. emp is the array I'm trying to create .
for(var i=0;i<datafile.length;i++){ var emp = datafile[i].split(":"); //document.writeln(emp.length+"<br>"); /document.writeln(datafile[i]+"<br>"); } //document.writeln(datafile[0]+"<br>");
Anybody got any suggestions about using two arrays. First i need to ask the user their name and if their require a seat between 1and 5 or between 6 and 10. I need to assign this information in two arrays. Any suggestions. I have been working on this so far. <script type="text/javascript">
var theArray = new Array(10);
//var sizeOfArray = parseInt(prompt("How many items will the array have?", ""));
for(i=0; i<10; i++) {
theArray[i] = prompt( "Please enter your name"); }
I want to make algorithms that take selections from arrays and put them together in new ways. here is a simple array I set up for notes of a piano keyboard: Code:
ch = wiggy[2]; // ch will contain the character 'C'
however my JS book seems to insist that I do this:
ch = wiggy.charAt(2);
and indeed doesn't appear to mention the first method at all.
Since for my particular purpose I want to treat the string as an array of single characters, I prefer the first method rather than the second. Is there any reason not to pursue this approach?
Any neat way to copy a snapshot of one array to another?
A normal assignment results in the second array pointing to the first, with changes to either array affecting both.
As a trivial example:
var a=new Array(); a[0]="zero"; var b=a; b[1]="one"; alert("a="+a.join("*")+String.fromCharCode(10)+"b="+b.join("*"));
.... this results in a and b being identical two-element arrays.
Is there any easy way to set array (b) to be a copy of (a) BY VALUE - ie using the contents of (a) as they were at the moment of assignment, but leaving the two arrays separate so that subsequent changes to one array does not affect the other?
looking for a way to pass an array to a function. ==================================== <script> function myfunction(arrayname) { document.write("blablabla"+ arrayname[1] +"blablabla"); } </script>
<html stuff>
<script> arrayname = new Array("what", "is", "wrong"); myfunction(arrayname); </script> ====================================
"When we combine FUNCTIONS with OBJECTS we get METHODS". Then he creates an empty ARRAY:
var a = [];
then he uses the "push() method" to add elements to the array.
a.push(1,2,3);
uh, methods are for *objects* right? Yet he is using them on an ARRAY.how an array can magically becomes an object that is manipulated by a "method"?I mean, the array is still an array, no? It never actually becomes an object, right? Yet we still use a *method* to manipulate it. See my conceptual quandry?
I have 2 arrays and I would like to compare the 2 arrays.If an element in array 1 is NOT in array 2 then I would like to display that element. In this case, I should only display the letter "c" but it doesn't work and I don't know why?
Here's my code:
<html><head> <script type="text/javascript"> function getValue(id){
I recently had a problem where I needed to build up an array of strings, that would be join()ed into a string when the array building was complete. however, each value could only be in the array once.
This was a problem for a few reasons. Once a value has gone into an array the only way to check for it that works cross-platform is to scan the array looking for the value. FireFox has the every() and some() functions but they don't work in anything else.
Using an object to simulate an assocaiative array would allow me to avoid this problem by storing key/values with the keys having the same value as the value I was storing. I could then use the (a in b) construct to check that I had not already added a value.
However, array type methods won't work with objects, so I had no access to size () or join () meaning I'd have to manually build the string by iterating over the object.
My solution was to use an array object, but to store the provided data i nboth the array proper and as a property of the array object.
var myArray = new Array;
function addVal (val) { if (!(val in myArray)) { myArray [val] = 1; myArray.push (val); } }
This approach does use up more memory but it does give me the advantages of both arrays and objects for little extra work. (if you don't have FireBug then replace console.log with alert)