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when check a checkbox, checked other checkbox with same value with javascript

I have two forms with radio type inputs, I would like that when we check an input in the 1st form another input is automatically checked in the second.
Here is the code of the 1st form:
<div class="color-box cta-box">
<label>Colors</label>
<div class="vpc-single-option-wrap">
<input id="cta-couleur_noir-color-selector" type="radio" name="couleur-color-selector" data-field="couleur-field" checked="" data-qtip="no">
<label for="cta-couleur_Noir-color-selector" class="vpc-custom-color custom" data-selector="couleur-field" data-color="Noir" data-name="Noir" data-oriontip="Noir" style="background-color:#000000"></label>
</div>
<div class="vpc-single-option-wrap">
<input id="cta-couleur_bleu-color-selector" type="radio" name="couleur-color-selector" data-field="couleur-field" data-qtip="no">
<label for="cta-couleur_Bleu-color-selector" class="vpc-custom-color custom" data-selector="couleur-field" data-color="Bleu" data-name="Bleu" data-oriontip="Bleu" style="background-color:#0419bd"></label>
</div>
</div>
And here is the code of the 2nd form:
<div class="color-box cta-box">
<label>Colors</label>
<div class="vpc-single-option-wrap">
<input id="cta-texte-en-tete-centre_noir-color-selector" type="radio" name="texte-en-tete-centre-color-selector" data-field="texte-en-tete-centre-field" checked="" data-qtip="no">
<label for="cta-texte-en-tete-centre_Noir-color-selector" class="vpc-custom-color custom" data-selector="texte-en-tete-centre-field" data-color="Noir" data-name="Noir" data-oriontip="Noir" style="background-color:#000000"></label>
</div>
<div class="vpc-single-option-wrap">
<input id="cta-texte-en-tete-centre_bleu-color-selector" type="radio" name="texte-en-tete-centre-color-selector" data-field="texte-en-tete-centre-field" data-qtip="no">
<label for="cta-texte-en-tete-centre_Bleu-color-selector" class="vpc-custom-color custom" data-selector="texte-en-tete-centre-field" data-color="Bleu" data-name="Bleu" data-oriontip="Bleu" style="background-color:#0419bd"></label>
</div>
</div>
So I would like that when I check the input with the ID cta-couleur_noir-color-selector in the 1st form, the input with the ID cta-texte-en-tete-centre_noir-color-selector "is automatically checked in the second form and the same for the id" cta-couleur_bleu-color-selector "which would correspond to the ID" cta-texte-en-tete-center_bleu-color-selector .
I tried with this script but it doesn't work:
<script type="text/javascript">
jQuery('input[type=radio][name=couleur-color-selector]').on('change', function () {
if ( jQuery(this).attr('id') == 'cta-couleur_bleu-color-selector'.checked) {
jQuery('#cta-texte-en-tete-centre_bleu-color-selector').prop(checked, true);
}else
{
jQuery('#cta-texte-en-tete-centre_noir-color-selector').prop('checked', true);
}
});
</script>
Could someone help me?

You must set unique value for each radio box in 1st form.
and check when radio click => get value and check to same unique value in 2nd form.
example:
$(document).on('click', '[type="radio"]', function () {
let value = $(this).val();
$('[value="'+value+'"]').prop('checked', true);
});

Set hidden input value depending on radio button selection

I have a checklist form that tallies a score based on the radio button selection that is working fine. When I post the form I want to get a value of "yes" or "no" from a hidden input with the same class based on radio button selection.
Because the "value" field is taken up by an integer for the scoring I want to pass a value to a hidden form input with the same class name. The value of the hidden input will be "no" if the value of the radio button selected is 0, or else it will be "yes".
I would like to be able to iterate it through all radio input groups (there are many). This is what I am trying to acheive in jquery written in English:
FOR each radio input group, IF the value of radio button selected is 0 then value of hidden input with the same class is "No", ELSE it is "yes".
I am having trouble with the javascript and would appreciate some assistance.
HTML
<!--Radio button example -->
<li>
<label>Does 1 + 1 equal 10 ?</label>
<input type="radio" class="radio1" name="question" value="1">Yes</input>
<input type="radio" class="radio1" name="question" value="0">No</input>
<input type="hidden" value="" id="answer" class="radio1"></input>
</li>
Thank you in advance, please let me know if you need more information.

Attach a JQuery event to radiobutton change
$(document).ready(function() {
$('input.radio1[type=radio]').change(function() { //change event by class
if (this.value == '0') {
$(this.ClassName[type=hidden]).val("No");
}
else if (this.value == '1') {
$(this.ClassName[type=hidden]).val("Yes");
}
});
});
This code may contain syntax errors, consider this as a pseudo code and Do It Yourself

Give the answers unique IDs if you need to use them
If you add [] to the name of the questions PHP will treat them as array and you can use a ternary to set the value $answer = $question=="1"?"YES":"NO";
If you still need to use a hidden field, here is code that does not look at the ID but at the name and type of field in each LI
$(function() {
//$("#questionnaire").on("submit", // better but not allowed in the SO snippet
$("#send").on("click",
function(e) {
e.preventDefault(); // remove when tested
$("#questionnaire ul li").each(function() {
var $checkedRad = $(this).find('input[name^=question]:checked');
var $answerField = $(this).find("input[name^=answer]");
$answerField.val($checkedRad.val()=="0"?"NO":"YES");
});
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<form id="questionnaire">
<ul id="questions">
<li>
<label>Does 1 + 1 equal 10 ?</label>
<input type="radio" class="radio" name="question1" value="1">Yes</input>
<input type="radio" class="radio" name="question1" value="0">No</input>
<input type="hidden" value="" name="answer1" class="radio"></input>
</li>
<li>
<label>Does 1 + 1 equal 20 ?</label>
<input type="radio" class="radio" name="question2" value="1">Yes</input>
<input type="radio" class="radio" name="question2" value="0">No</input>
<input type="hidden" value="" name="answer2" class="radio"></input>
</li>
</ul>
<button id="send" type="button">Click</button>
</form>

$("input[type='radio']:checked").each(function(i, element) {
var hiddenVal = $(element).value() === "0" ? "No" : "yes"
$("." + $(element).attr("class") + "[type='hidden']").val(hiddenVal);
})

Hide div for Radio button selected value using jquery- Not working

I want to hide a div (AppliedCourse), when radi button value is Agent. I wrote below code but it is not working.
Any idea?
$('#HearAboutUs').click(function() {
$("#AppliedCourse").toggle($('input[name=HearAboutUs]:checked').val()='Agent');
});
<tr><td class="text"><input type="radio" name="HearAboutUs" value="Press">Press & Print media
<input type="radio" name="HearAboutUs" value="Internet">Internet
<input type="radio" name="HearAboutUs" value="Agent">Agent
<input type="radio" name="HearAboutUs" value="Friend">Friend
<input type="radio" name="HearAboutUs" value="Other" checked="checked">Other</td></tr>

Either your HTML is incomplete or your first selector is wrong. It is possible that your click handler is not being called because you have no element with id 'HeadAboutUs'. You might want to listen to clicks on the inputs themselves in that case.
Also, your logic is not quite right. Toggle hides the element if the parameter is false, so you want to negate it using !=. Try:
$('input[name=HearAboutUs]').click(function() {
var inputValue = $('input[name=HearAboutUs]:checked').val()
$("#AppliedCourse").toggle( inputValue!='Agent');
});
I have made a JSFiddle with a working solution: http://jsfiddle.net/c045fn2m/2/

Your code is looking for an element with id HearAboutUs, but you don't have this on your page.
You do have a bunch of inputs with name="HearAboutUs". If you look for those, you'll be able to execute your code.
$("input[name='HearAboutUs']").click(function() {
var clicked = $(this).val(); //save value of the input that was clicked on
if(clicked == 'Agent'){ //check if that val is "Agent"
$('#AppliedCourse').hide();
}else{
$('#AppliedCourse').show();
}
});
JS Fiddle Demo
Another option as suggested by #Regent is to replace the if/else statement with $('#AppliedCourse').toggle(clicked !== 'Agent');. This works too.

Here is the Fiddle: http://jsfiddle.net/L9bfddos/
<tr>
<td class="text">
<input type="radio" name="HearAboutUs" value="Press">Press & Print media
<input type="radio" name="HearAboutUs" value="Internet">Internet
<input type="radio" name="HearAboutUs" value="Agent">Agent
<input type="radio" name="HearAboutUs" value="Friend">Friend
<input type="radio" name="HearAboutUs" value="Other" checked="checked">Other
</td>
Test
$("input[name='HearAboutUs']").click(function() {
var value = $('input[name=HearAboutUs]:checked').val();
if(value === 'Agent'){
$('#AppliedCourse').hide();
}
else{
$('#AppliedCourse').show();
}
});

Check if checkbox checked property is not empty using jQuery

How can I check checkboxes checked property? If any of them is not checked, display this sentence in span: "you shoud select one of them". My validation don't work.
<label>
<input type="checkbox" name="chk[]" id="chk[]" />male
</label>
<label>
<input type="checkbox" name="chk[]" id="chk[]" />female
</label>
<script>
if ($('input[name="chk[]"]:checked').length < 0) {
$("#textspan").html('you shoud select one of them');
}
</script>

As far as your specific question goes, when no checkbox is checked $('input[name="chk[]"]:checked').length is 0, not negative - so you should change the condition from if ($('input[name="chk[]"]:checked').length < 0) to if ($('input[name="chk[]"]:checked').length == 0)
Full example
Other than that, some side notes:
1. I'd use radio buttons (as it is more suitable for your current male / female selection).
2. You have the same ID (chk[]) twice, which renders your HTML invalid.
3. The [] characters in the ID are not permitted in HTML 4.1 standards, and do not suit the convention.

I took the liberty of changing the code a bit, as your HTML is a bit strange.
Working example: http://jsfiddle.net/a4jzvoou/
HTML:
<div>
<input type="checkbox" class='gender' id="male">male</input>
<input type="checkbox" class='gender' id="female">female</input>
</div>
<button class="validate">Validate</button>
JS:
$(function() {
$('.validate').click(function(event) {
var checkedCount = ($('input[class="gender"]:checked').length))
})
});

Javascript Radiobutton Group Validation

I would like your help to develop a javascript function to validate if one of the following radiobutton group (IDType) is selected and which value is checked and view error message in (ValidationError) division in case no radio button selected ??
<td>
<div>
<span>
<input type="radio" name="IDType" id="IDType" value="IDtype1"/>
ID Type 1
<input type="radio" name="IDType" id="IDType" value="IDtype2"/>
ID Type 2
</span>
<div id="ValidationError" name="ValidationError">
</div>
</div>
</td>
Thanks for your help.....

First of all, as said my collegues, you cannot have the same id ("IDType") for both your radio buttons.
Here is a solution with javascript only, without any jquery.
<html>
<head>
<script type="text/javascript">
function Validate() {
var radios = document.getElementsByName('IDType')
for (var i = 0; i < radios.length; i++) {
if (radios[i].checked) {
alert("Selected Value = " + radios[i].value);
return true; // checked
}
};
// not checked, show error
document.getElementById('ValidationError').innerHTML = 'Error!!!';
return false;
}
</script>
</head>
<body>
<form>
<div>
<span>
<input type="radio" name="IDType" value="IDtype1"/>
ID Type 1
<input type="radio" name="IDType" value="IDtype2"/>
ID Type 2
</span>
<div id="ValidationError" name="ValidationError">
</div>
</div>
<input type="submit" value="Submit" onclick="return Validate();" />
</form>
</body>
</html>

function validateRadioButtons(){
var radio = $('input:radio[name="IDType"]:checked');
if(radio.length == 0)//no buttons selected
{
$('ValidationError').text("you haven't selected any buttons!");
return;
}
$('ValidationError').text(radio.val()+' is selected');
}
ps: in order for this to work, you should consider using unique id's for dom elements. you cannot have the same id ("IDType") for both your radio buttons.