JQuery :: Textarea Form - Selecting Array Elements?

Feb 22, 2011

I'm trying to add the text of a textarea form to the string that's contained at:
myarray[a][b][c]
It was easy to pull out the value of the textarea with this:
textinput = $('#mytextarea').val();
But then when I try to add the variable into the array, it doesn't work. I'm not able (apparently) to do this. Fingers crossed that I'm doing something dumb?

This doesn't work:
myarray[a][b][c] += newstringvariable;
Nor this:
myarray[a][b][c] = myarray[a][b][c] + textinput;
I'm guessing there is a very simple (probably syntax related!) solution to this. I'm open to doing this via jQuery or regular javascript.

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Show Form Elements By Selecting Checkbox?

May 11, 2011

Trying to build a dynamic part on my form by using a checkbox and <span>. Found a script that does exactly what i want, but uses a 'radio' in the script instead of a checkbox. And at that spot i need to be able to make multiple selections, so i need checkboxes.. In this specific case it's about geslacht='v' checkbox

My problems are:

1. My span doesn't start off at invisible
2. My function match_personalia_geslacht() works with a onChange, not with a onSelect.

Don't know how to get the same result with a checkbox.. So if someone can help me, i would be a happy man.

[Code]...

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Using Form Elements In Array?

Sep 22, 2010

I am creating an array based on form elements. I then am trying to create an IF (and nested IF) statement to check if the fields are empty and then with the nested IF statement use certain fields to create mathematical functions.

So far I have this:

function QuantityMWh(form) {
var formchk = document.forms[0]
for (i = 0; i < formchk.elements.length; i++) {
if (formchk.elements[1].value == "" && formchk.elements[2].value == "") {

[Code]....

It's only checking the first field and not the second, and vice versa. i.e. if only one field has text then it passes.

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Set Value Of Array Of Form Elements

Oct 14, 2009

I have a form that has an array of input values:

I do this so I can loop through the values in php... now...that's the easy part... the hard part comes to this:

Next to each of those boxes is a search button that allows the user to open up a popup window that they can search for an item, and select the item. Once they select the item it should populate that particular input box with the selected item. I can easily do this with a uniquely named input box, but can't seem to figure out how to do it with an array of input boxes...

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Form Elements Array Not Being Updated

Oct 28, 2009

I use a very handy function (onsubmit) to validate empty fields in a form:

PHP Code:
function validate_form(){
var x = document.getElementById("form1");
for(var i=0; i<x.length; i++){
if((x.elements[i].value == "") && (x.elements[i].title)){
[Code]....

It worked like a charm, until I had to change a dropdown dynamically with ajax. I have two dropdowns, the second being populated with ajax (php, mysql) by the option selected in the first one. The second dropdown has the title attribute filled so the previous function can validate and ask the user to select something. However, it seems like fields loaded dynamically with ajax wont appear inside the x.elements[] array. I've tested it over and over, it keeps ignoring it. It isn't even in the array. Why?

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JQuery :: Selecting All Td Elements In A Row But The First One

Feb 18, 2011

I have the following code that works fine (except the show/hide animation for the rows is proving to be a pain to get working):

In the table this is for, I have a checkbox in the first cell in the row the user hovers and clicks on to expand the following row. I am trying to make it so that clicking the checkbox doesn't trigger the jQuery toggling action.

Here is a sample row in the table this is for. The complete row below is what the user clicks on, and the row after that (class="docClassesRow") is what is expanded on clicking the above row

I tried adding :not(:first-child) to the selector:

But that didn't work.

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Array Within Form - Just Run It Once With Two Html Input Checkbox Elements

Jan 27, 2011

For some reason my script only works when I have at lease two checkboxes. To simulate the problem just run it once with two html input checkbox elements

-> check one checkbox and press submit -> it works
-> Now remove one input checkbox field and check the remaining checkbox & submit -> Bamm doesn't work...

[Code]....

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JQuery :: Selecting Groups Of Elements?

Feb 11, 2010

I am trying to easily fix 100+ blog posts where the customer has <pre>tagsto format code.

the issue is in wordpress when you hit enter you are given a new <p> tag, and setting the format to preformatted outputs code like this

<pre>line</pre>
<pre>line</pre>
<pre>line</pre>

[Code].....

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JQuery :: Selecting Nested Elements?

Aug 17, 2011

i'm trying to do the following: select the links one after another and add a class to them. When the next one is selected i want to remove the class from the previous.

[Code]...

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Does A Form Element Know Its Own Index Number In The Forms[].elements[] Array

Aug 24, 2010

I have a form element that looks like this:

<input type="text" onchange=doSomething(this)>

and a function:

function doSomething(theField){
}

I know that within the function I can access properties of the field (e.g. theField.name and theField.value). But how do I access theField's index number in the form's elements[] array -- from the "this" reference that was passed to the function? I.E. if this field is elements[3], how can I get at that 3?

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JQuery :: Selecting Elements Using Multiple Parameters?

Aug 4, 2010

Selecting elements using multiple parameters like here: $('descendant', 'ancestor').text(); seems to be way more popular than css-like syntax: $('ancestor descendant').text(); Do those two differ in performance, or is it just about being intuitive to particular people?

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JQuery :: :nth-child() Selecting Elements Of One Class But Not Another?

Aug 19, 2011

im experiencing a problem when using the :nth-child() selector.

I currently have a div that contains multiple divs. These divs have either the class 'labels' or 'labels-alt', I currently use the following code to change add/remove a class to one of these

function mOver1(n) {
$('.labels:nth-child('+n+')').toggleClass("labels-hover");
}
function mOut1(n) {

[Code]....

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JQuery :: Selecting Dynamically Created Elements?

Aug 18, 2010

Previously when developing my own modal windows I have been creating a "mask" div directly in my markup, in the CSS setting it to be display:none and then setting it to show() by jQuery when a button is clicked.

I'm sure there is a better way to do this but i'm getting a little stuck.

I tried adding the "mask" div and its content to the body using prepend() when my button is clicked but i found i then can't select any of the added elements in jQuery.

How can you select elements you have added to a page by jQuery?? Also if this is the right approach whats the best way to insert a block of html to a page??

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JQuery :: Selecting Elements By Name In Extremely Slow?

Oct 23, 2010

I'm having trouble using jQuery to find get select box values by element name. At the moment the code is in a for loop and it gets 8 different form values and puts it into an array. Currently this takes 1.5 seconds to execute which is far too slow as the user has to wait for it to finish. Here's the code which is inside the loop:

[Code]...

This when run executes instantly with no time delay. Why is the jQuery way so much slower? I'm all for saving 2 lines of code but not when it's 10x slower. Also I shouldn't need to put an id on the select box element to make finding it faster, the name value is already unique because I require the specific value once the form has been submitted.

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JQuery :: Selecting Elements From HTML String?

Jul 8, 2010

how can i select elements from a HTML string. i have used .get() to load data and i want to search for HTML elements within that data/string

$.get(nextHref, function(data) {
alert(data); // OK
// i tried
alert($(data).find("#posts").html()); // returns null

[Code]....

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JQuery :: Selecting Elements That Ajax Has Not Delivered Yet

Sep 17, 2010

Here's some pseudo-code for reference:

$(document).ready(
function() {
... // #1 some code that fetches xml and generates a dom structure... <ol id='bla'><li></li></ol> then .appendTo('#foo');
... // #2 some code that generates another dom structure to be inserted into $('#bla').
}
)

The snippet #1 fetches xml and generates a dom to be appended to $('#foo'). But snippet #2 refuses to work with the id's created by the steps in #1. My guess is it is because #2 ran before #1 finished.

How do I make it so that #2 can reference the id's created by #1? Do I make #1 syncrhonous? Is there a way to make #2 run only after #1 is done? Do I just include onclick to the elements created by #1 -- I was hoping to avoid this because it appears the jQuery collective frowns on this.

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Sep 15, 2011

I have a page where I have images that may have visibility 'hidden' or 'visible'.

So how do I ensure I animate (and other 'manipulations') only visible images when mouseover them and not the hidden image?

Must mention I want to do this without any use of css classes or other non-jquery made css.

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JQuery :: Selecting / Operating On Multiple Elements?

Aug 12, 2010

I am creating an FAQ type page with rows of questions that will drop down the respective answer when clicked. I have it mostly working, except I can't find a way to close all answers before opening the next one. I have tried everything I can think of (or search), but to no avail. I am using the following code, where QQQ1/2 are the questions, and AAA1/2 are the answer divs:

//Question/Answer
$(".QQQ1,.QQQ2").click(function () {
// check the visibility of the next element in the DOM
if ($(this).next().is(":hidden")) {

[Code].....

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Loop Through Form.elements Array Validating With Custom Event Handlers?

Jun 27, 2011

Nice module, but I can't get it too work.

Code:

/**
* validate.js: unobtrusive HTML form validation.
*

[code]....

but the script alerts me nothing?

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Form Elements And Document Models - Structure The Input Names To Get An Array

May 2, 2011

I'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]...

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Aug 5, 2011

Im working on some drag and drop logic similar to the jQuery shopping cart example, but I've run into a small hitch. If I double click on the LI within my 'dropped' area it causes them to become draggable again. I specifically set up drag to only work from one source list, so Im unsure how double clicking is causing this bug?

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JQuery :: Selecting Elements That Match A Regular Expression?

Sep 16, 2009

is there a way to select elements that match a regular expression? I have a set of divs with id = "wrap_n" where n is a progressive and I need to select them and for each 1 I have to add a function that togggle the "elem_n" div.

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JQuery :: Selecting Multiple Elements And Storing Them In A Variable?

Mar 23, 2011

just a very basic question. Have a div (id - photos) with multiple images. 1) Does this select them all? $('#photos img') 2)If so, how can i capture this information? Like so -> var bunchOfStuff = ($('#photos img')); and 3) if so, why can't i do something like alert(bunchOfStuff.length)into code tags...

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JQuery :: Selecting All Input Fields, In A Iteration Over Table Elements

Jul 26, 2010

What I have is this html:

<div class="persons">
<table>
<tr>
<td>Name: </td>

[Code]....

Now what do I write in this iteration loop to first get the text from the FIRST name and age box, in the first <table> (so I can work with tem). And in the next iteration loop get the SECOND <table>s input fields text values?

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JQuery :: Selecting <SELECT> Next To <INPUT> In A Control Array?

Aug 21, 2011

I have a series of TEXT inputs each with a corresponding SELECT next to it. I don't know the actual ID of these controls because .net assigns them, but I can use a wildcard.

When the focus leaves one of the Text inputs, I want to display the corresponding Select (which is previously hidden). My ready function looks like this:

[Code]...

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Correct Syntax For An Nested Array Where Each Array Element Has 3 Elements, A Number And Two Text Strings?

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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