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How to select for multiple fields with Jquery?

I currently have a form that is displaying fields that I do not want it to. There are 3 input fields associated with one form and the same form is being rendered multiple times.
I have my template set up to check for when this was only one value. I need to change it so the template will check for all of the values present & then decide to render.
So for example,
I have,
Div_id_form-0-x,
Div_id_form-0-y,
Div_id_form-0-z,
Div_id_form-0-location__location_category__requires_coordinates
What selector can I use to grab all of these to use in my template?
I need to grab them for each form. Where it says form-0 I have several of these forms repeating.
Then in HTML I have something like this.
$(function () {
// Determine weather we are in a modal window.
var context = $("#{{ contextId }}-form");
console.log("this is the {{ contextId }}" )
// Show required coordinates if location category requires them.
context.find("#id_location__location_category__requires_coordinates").change(function () {
if (context.find("#id_location__location_category__requires_coordinates").val() == 'Y') {
context.find('#id_needs_coordinates').removeClass('hide');
} else {
context.find('#id_needs_coordinates').addClass('hide');
}
});
});
Right now this is only checking for one value to determine whether to hide. I need it to check all of these for this value. Which is why I'm looking for a Jquery selector that can do such.

If you want a selector for IDs, you can use:
$("#Div_id_form-0-x, #Div_id_form-0-y, #Div_id_form-0-z, #Div_id_form-0-location__location_category__requires_coordinates")
Please see: https://api.jquery.com/id-selector/
Update
In the future, please clarify the entire issue and provide a proper example.
You can use the Attribute selectors.
$("[id^='Div_id_form-']")
This will select all IDs like:
Div_id_form-0-x
Div_id_form-1-x
Div_id_form-2-x
You will then select all of those elements.
See More: https://api.jquery.com/category/selectors/attribute-selectors/

How to navigate to last <input> tag in fieldset using Jquery in a Drupal View form

I am not a front-end developer and I have very limited exposure to JQuery JS etc. So any help is appreciated, thanks.
Objective : - I want to put the sum of all fields (except last ) of a fieldset into last field of that fieldset.
The form is rather complicated, in this form, there are multiple fieldsets and each fieldset contain multiple fields.
This form is generated by Drupal Views & I have very limited options to navigate in this form.
I can not use id, name or any other attribute as they are dynamically generated by CMS also there are hundreds of such fieldset so it is not feasible to write code for every one of them.
So, future addition of fields may alter the attributes. And I can not add my own attributes, classes, or ids to this form.
form looks something like this
<fieldset>
------<div>
---------<fieldset> **this one**
------------------<input>
------------------<input>
------------------<input>
------------------<input>
----------------nth <input> <= Sum of 1st to (n-1)th should come here
-----------------------<div>
I think that it can be done possibly through input:last but can't figure out how to use it properly.
Here is the function I wrote
$(function() {
$('input').change(function() {
var sum = 0;
// Loop through all inputs
$(this).closest('fieldset').find('input').each(function() {
sum += parseInt($(this).val());
console.log(sum);
// i want to put sum into last <input> tag of the current fieldset
});
});
}); // end function()
the output of console.log ($(this).closest('fieldset').find("input").last());); is
So, I figured that I have to extract attribute value, so far I have tried these
$(this).closest('fieldset').find("input").last().data('value'); Undefined
and
$(this).closest('fieldset').find("input").last().attr('value'); results in Undefined

Set multiple form values using jQuery Data attribute

So let us say i have a form with id #form which has two input fields, namely title & price.
I click on the Edit button somewhere in the application which has data attributes (e.g data-title="Apple" data-price="10")that are to be assigned to the #form upon clicking the button.
the obvious solution that works is
$("#name").val($(this).data('name'));
$("#price").val($(this).data('price'));
This obviously looks bad when you have too many fields. So I am trying to get something like this to work $('#form').data($(this).data());, more or less in a single like
Have tried this many ways with no success
Any help is appreciated

You could create a jquery plugin that you can call from the element that contains the data points and have it apply the data based on the key to elements within the form of that same name. Example below
$.fn.applyData = function(form) {
$form = $(form);
$.each($(this).data(), function(i, key) {
$form.find('#' + i).val(key);
});
};
JSFiddle: http://jsfiddle.net/LCM8S/43/

Submit div content contains form control states

I have a div with HTML tags and form controls like check boxes, text and drop lists. I want to post the whole content along with form controls' states (ie, capture user's choices) to save it into database and later, re-render the exact HTML.
How can I do that? I used
$("#div").clone()
But it seems control states not saved.
Note: I don't want to post the inner form, then re-render form states because the HTML is dynamic (it's a HTML template)

If I understand your question right, you need to store control states into HTML elements first (to a markup) and then submit div's innerHTML property...
See this fiddle - http://jsfiddle.net/esy1cc8z/
First of all you need to iterate over all form controls in specified DIV:
var ctrls = parent.querySelectorAll("input, select, textarea");
for(var i = 0; i < ctrls.length; i++){
var el = ctrls.item(i);
//...
And then store states of various form controls into DOM elements as attributes (= default values in HTML):
var type = el.getAttribute("type");
//For checkbox
//Checkbox
if(type == "checkbox"){
if(el.checked)
el.setAttribute("checked", "checked");
else
el.removeAttribute("checked");
//Other textual / numeric input types
} else {
el.setAttribute("value", el.value);
}
Of course if you need usable algorithm then you need to write conditions for all form control types, this is just an example...
Note: this is pure JS solution, using jQuery it may be simplier code...

Jquery to detect if duplicate values in forms

I have built a dynamic table containing form fields that can be added or removed when required.
What im wondering is.. Is there a plugin or script that has been created that can search a set of form fields for duplicate values ?
Example.
We have a form field with a class of "field-name"
this field may exist 10 times on the page because its part of dynamic rows.
So what im hoping is.. for a plugin that wont allow duplicate values to exist in these fields on the page ?

You can check the fields yourself with a few lines of code. The below runs on form submit and creates a copy of the original values with duplicates removed. If the lists don't match then you know you have some duplicate values.
$('form').submit(function (evt) {
var dynamicFields = $('.field-name'),
uniques = $.unique(dynamicFields);
if (uniques.length != dynamicFields.length) {
alert('Please make sure all your values are unique.');
return false;
}
});