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Not getting text by getText() or getAttribute("innerHTML")

getAttribute, everything but not getting the text along perticula combobox.
I want to get the text along with each combobox.
<small>
<input type="checkbox" checked="checked" value="on" name="irOperations[0]"/>
Account Activity
<br/>
<input type="checkbox" checked="checked" value="on" name="irOperations[1]"/>
Current Day Balances
<br/>
<input type="checkbox" checked="checked" value="on" name="irOperations[2]"/>
Current Day Transactions
<br/>
<input type="checkbox" checked="checked" value="on" name="irOperations[3]"/>
Prior Day Balances
<br/>
<input type="checkbox" checked="checked" value="on" name="irOperations[4]"/>
Prior Day Transactions
<br/>
<li class="xc">
</small>

What you can do:
Wrap your text with <label></label>
Connect your text with your checkbox with an ID
Then you can get the innerHTML from that label
Example:
HTML
<input id="account-activity" type="checkbox" checked="checked" value="on" name="irOperations[0]">
<label for="account-activity">Account Activity</label>
JavaScript
document.querySelector('[for="account-activity"]').innerHTML

This will return an array with "name" as index and next content of it as value
var comboboxes = document.getElements('input[type="checkbox"][name]');
var output = [];
comboboxes.forEach(function(combobox) {
output[combobox.getAttribute('name')] = combobox.nextSibling.textContent.trim();
});
console.log(output);
or
document.getElement('input[type="checkbox"][name="irOperations[1]"]').nextSibling.textContent

Well you can't get innerHTML or getText of elements which are "self-contained" e.g <input />
One way you do it by using HTML5 data attributes and giving each element an ID:
<input type="checkbox" id="account_activity" data-detail="Account Activity" checked="checked" value="on" name="irOperations[0]"/>
Account Activity
<br/>
This way you can use following JS to get the value:
var combo_element = document.getElementById("account_activity");
alert(combo_element.getAttribute("data-detail"));

Dynamically adding sets of radio inputs

So I have dynamic form that I create and there could be multiple sets of radio inputs they all do have the same name Release[] but I do not know how to group the properly now if you will add 4 sets of those radio inputs you will be only able to select 1 from all of them
$('a#AddChampion').on('click', function () {
$('div#ChampionInput').append(
'<input type="radio" name="Release[]" value="New">New\
<input type="radio" name="Release[]" value="Rework">Rework\
<input type="radio" name="Release[]" value="None" checked>None\
');
});

Yes if you intend to use the same name only one output can be obtained. If you want to collect them separately you will have to use separate names.
E.g.
For two groups of ReleaseGrp1 and ReleaseGrp2
<input type="radio" name="ReleaseGrp1" value="New">New
<input type="radio" name="ReleaseGrp1" value="Rework">Rework
<input type="radio" name="ReleaseGrp1" value="None" checked>None
<input type="radio" name="ReleaseGrp2" value="New">New
<input type="radio" name="ReleaseGrp2" value="Rework">Rework
<input type="radio" name="ReleaseGrp2" value="None" checked>None

As for all the tags input with the specified attribute to set, for example, attribute checked = false?

Put tags input type = "radio" with its attribute data-group:
<input type="radio" id="id1" data-group="group1">
<input type="radio" id="id2" data-group="group1"><br>
<input type="radio" id="id3" data-group="group2">
<input type="radio" id="id4" data-group="group2"><br>
How at all elements of input type="radio", which is data-group "group1", set the checked=false?

You can use the attribute selector:
$('input[type="radio"][data-group="group1"]').prop('checked', false);
Or filter():
$('input[type="radio"]').filter(function() {
return $(this).data('group') == 'group1';
}).prop('checked', false);

The best way to group radio buttons is to use the name attribute; the browser will then group them together for you, unchecking others when you check another member of the same group. That's the purpose of input[type=radio]:
<input type="radio" id="id1" name="group1">
<input type="radio" id="id2" name="group1"><br>
<input type="radio" id="id3" name="group2">
<input type="radio" id="id4" name="group2"><br>
And if you wanted to make all of the name="group1" ones unchecked, then:
$("input[type=radio][name=group1]").prop("checked", false);
But if you want to use your current structure, and you're asking how to set them all unchecked, then you can use an attribute selector:
$("input[type=radio][data-group=group1]").prop("checked", false);

Creating an Associative Array using JQuery

I am trying to create an associative array using JQuery. I would like it to be filled with the values of the checkboxes a user has selected from the UI.
I was creating the array like this at first:
$contentArray = [];
$('.content-filter :checked').each(function(){
$contentArray.push(this.value);
})
but the problem with this is that when I pass it to a php script via Ajax it was making it very difficult to get values from it. I'd rather be able to get the values from the array based on the key associated with it.
So I decided to modify my code to this:
$contentArray = new Array(); //Hold checked "content" filters
//Content Filter - cycle through each filter and add value of checked ones to array
$('.content-filter :checked').each(function(){
$contentArray[this.value] = this.value;
})
however now when I perform console.log I am being told the contents of my array contains nothing.
Can anyone advise me on how to fix this issue and show me where I am going wrong?

Your filter is wrong - you need to remove the space before :checked, otherwise it will look for an element inside the checkbox which is checked, which obviously doesn't exist:
$contentArray = new Array(); //Hold checked "content" filters
//Content Filter - cycle through each filter and add value of checked ones to array
$('.content-filter:checked').each(function(){
$contentArray[this.value] = this.value;
})
console.log($contentArray);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<input type="checkbox" class="content-filter" value="1" />
<input type="checkbox" class="content-filter" value="2" checked="checked" />
<input type="checkbox" class="content-filter" value="3" checked="checked" />
<input type="checkbox" class="content-filter" value="4" />
<input type="checkbox" class="content-filter" value="5" />
However, as mentioned, this just creates a fragmented array. If you want truly associative keys, you should create an object (tho I don't see this being easier to process in php):
$contentObject = {}; //Hold checked "content" filters
//Content Filter - cycle through each filter and add value of checked ones to array
$('.content-filter:checked').each(function(){
$contentObject[this.value] = this.value;
})
console.log($contentObject);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<input type="checkbox" class="content-filter" value="1" />
<input type="checkbox" class="content-filter" value="2" checked="checked" />
<input type="checkbox" class="content-filter" value="3" checked="checked" />
<input type="checkbox" class="content-filter" value="4" />
<input type="checkbox" class="content-filter" value="5" />

how to get only one radio button value in javascript

<input type="radio" name="red" value ="red" onclick="myFunction(this.value);"id="chkbx" /> Red<br>
<input type="radio" name="green" value ="green" onclick="myFunction(this.value);"id="chkbx" > green<br>
<input type="radio" name="yellow" value ="yellow " checked onclick="myFunction(this.value);"id="chkbx" > yellow<br>
<input type="radio" name="orange" value ="orange" onclick="myFunction(this.value);"id="chkbx" > orange<br>
<input type="radio" name="blue" value ="blue" onclick="myFunction(this.value);"id="chkbx" > blue<br>
<p id="demo"></p>
button onclick="myfunction(this.value)">My Choice</button>
<br><br>
<p id="demo"></p>
<script>
function myFunction(chkbx)
{
if(chkbx.checked)
{
chkbx.checked = false;
}
else
{
chkbx.checked = true;
}
The Thing is " I want to get the colour from radio button apply to a text in output screen(at a time one radio button would be select).What can i do. Please give some idea. i am new to javascript. I want in javascript only.

.Value will return you the value:
function myFunction(chkbx)
{
if(chkbx.checked)
{
alert(chkbx.value);
}
}

Give all the radio buttons in the group the same name.

Radio buttons allow the user to select only ONE of a predefined set of options. You define groups with the name property (radio buttons with the same name belong to the same group).
So to solve your issue, you can do as belows.
<p><input type="radio" name="color" value ="red"><i>Red</i></p>
<p><input type="radio" name="color" value ="green"><i>Green</i></p>
<p><input type="radio" name="color" value ="yellow" checked><i>Yellow</i></p>
<p><input type="radio" name="color" value ="orange"><i>Orange</i></p>
<p><input type="radio" name="color" value ="blue"><i>Blue</i></p>