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Clear textbox and radio buttons onclick with Javascript

<input id="firstLocation" type="radio" />
<label for="firstLocation">text</label>
<input id="secondLocation" type="radio" />
<label for="secondLocation">text</label>
<input class="cityName" id="locationName" type="text" value="" />
So basically, this is my html. What I want to do now, is to use JavaScript, not jQuery, to clear the text input field (if something had previously been entered) whenever the radio buttons are clicked and to uncheck the radio buttons whenever someone clicks onto the text field. I quickly found a jQuery solution, but got the task to use JavaScript instead. As I'm not having very much experience with JS, I can't wrap my head around it to get it to work.
Any thoughts?
Would appreciate very much.

You can use .querySelectorAll() and .querySelector() in order to find the elemnts and .addEventListener() to attach the event handlers:
document.querySelectorAll('#firstLocation, #secondLocation').forEach(function(ele, idx) {
ele.addEventListener('change', function(e) {
document.querySelector('#locationName').value = '';
});
});
document.querySelector('#locationName').addEventListener('input', function(e) {
document.querySelectorAll('#firstLocation, #secondLocation').forEach(function(ele, idx) {
ele.checked=false;
});
})
<input id="firstLocation" type="radio" />
<label for="firstLocation">text</label>
<input id="secondLocation" type="radio" />
<label for="secondLocation">text</label>
<input class="cityName" id="locationName" type="text" value="" />

Javascript - unselect checkboxes, items mutually exclusive

I have a group of check boxes that are all part of one array. What I require is that if the first one is selected (I don't mind), then any of the others are unselected, and vice versa - if one of the bottom three options are selected, then I don't mind needs to be unselected.
The last three options can all be selected at the same time.
This Link is similar to what I am asking to do. Any help would be appreciated
<fieldset class="checkbox">
<legend>Sitter type</legend>
<div id="field_844" class="input-options checkbox-options">
<label for="field_1071_0" class="option-label">
<input type="checkbox" name="field_844[]" id="field_1071_0" value="I don't mind">I don't mind</label>
<label for="field_1072_1" class="option-label">
<input checked="checked" type="checkbox" name="field_844[]" id="field_1072_1" value="Sitter">Sitter</label>
<label for="field_1073_2" class="option-label">
<input type="checkbox" name="field_844[]" id="field_1073_2" value="Nanny">Nanny</label>
<label for="field_1074_3" class="option-label">
<input type="checkbox" name="field_844[]" id="field_1074_3" value="Au Pair">Au Pair</label>
</div>
</fieldset>

The code is exactly the same as the link you provided.
<fieldset class="checkbox">
<legend>Sitter type</legend>
<div id="field_844" class="input-options checkbox-options">
<label for="field_1071_0" class="option-label">
<input type="checkbox" name="field_844[]" id="field_1071_0" value="I don't mind">I don't mind</label>
<label for="field_1072_1" class="option-label">
<input checked="checked" type="checkbox" name="field_844[]" id="field_1072_1" value="Sitter">Sitter</label>
<label for="field_1073_2" class="option-label">
<input type="checkbox" name="field_844[]" id="field_1073_2" value="Nanny">Nanny</label>
<label for="field_1074_3" class="option-label">
<input type="checkbox" name="field_844[]" id="field_1074_3" value="Au Pair">Au Pair</label>
</div>
</fieldset>
And then:
// We cache all the inputs except `#field_1071_0` with `:not` pseudo-class
var $target = $('input:not(#field_1071_0)');
$('#field_1071_0').on('change', function () {
// if 'i don't mind' is selected.
if (this.checked) {
// remove the 'checked' attribute from the rest checkbox inputs.
$target.prop('checked', false);
}
});
$target.on('change', function () {
// if one of the bottom three options are selected
if (this.checked) {
// then I don't mind needs to be unselected
$('#field_1071_0').prop('checked', false);
}
});
Demo: https://jsfiddle.net/426qLkrn/4/

I cannot remember an in-house feature of JavaScript or jQuery that makes it possible to solve your problem. So, you have to solve it by your own.
You can add a data attribute to your checkboxes where you list all the checkboxes (as an id) which cannot be selected at the same time with the current checkbox, e.g.:
<input type="checkbox" name="field_844[]" id="field_1071_0" value="I don't mind" data-exclude="['field_1072_1','field_1072_2','field_1072_3']" />
<input checked="checked" type="checkbox" name="field_844[]" id="field_1072_1" value="Sitter" data-exclude="['field_1071_0']" />
...
Then, you add, for example, an onchange event to each of the checkboxes. This event checks whether the checkbox has changed to checked or to unchecked. If it has changed to checked, you have to uncheck all checkboxes within the list:
document.getElementById("field_1071_0").onchange= function(e) {
if (this.checked) {
this.dataset.exclude.forEach(function (exc) {
document.getElementById(exc).checked = false;
});
}
};
Or, with jQuery:
$("#field_1071_0").change(function (e) {
if ($(this).prop("checked")) {
$(this).data('exclude').forEach(function (exc) {
$("#" + exc).prop("checked", false);
});
}
});
The good thing is: You can apply this function to each checkbox you want, e.g.:
$("input:checkbox").change(function (e) {
if ($(this).prop("checked")) {
$(this).data('exclude').forEach(function (exc) {
$("#" + exc).prop("checked", false);
});
}
});
Now, each checkbox has the desired behaviour. So, this solution is a general way to solve it.
Comment: If you do not have access to the HTML code, i.e., to the input fields to add some information like the data-attribute, you can add those information via jQuery/JavaScript too:
$("#field_1071_0").data("exclude", ['field_1072_1','field_1072_2','field_1072_3']);
$("#field_1072_1").data("exclude", ['field_1071_0']);
...

jquery prop method can be used to pragmatically check or unchecked a check box. is can be use to evaluate if a condition is true or false.
Hope this snippet will be useful
// if first check box is selected , then checkedremaining three
$("#field_1071_0").on('change', function() {
//$(this) is the check box with id field_1071_0
// checking if first checkbox is checked
if ($(this).is(":checked")) {
//opt2 is a common class for rest of the check boxes
// it will uncheck all other checkbox
$(".opt2").prop('checked', false)
}
})
//unchecking first checkbox when any of the rest check box is checked
$(".opt2").on('change', function() {
if ($(this).is(":checked")) {
$("#field_1071_0").prop('checked', false)
}
})
<!--Adding a class `opt2` to the last three checkboxes-->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<fieldset class="checkbox">
<legend>Sitter type</legend>
<div id="field_844" class="input-options checkbox-options">
<label for="field_1071_0" class="option-label">
<input type="checkbox" name="field_844[]" id="field_1071_0" value="I don't mind">I don't mind</label>
<label for="field_1072_1" class="option-label">
<input checked="checked" type="checkbox" class="opt2" name="field_844[]" id="field_1072_1" value="Sitter">Sitter</label>
<label for="field_1073_2" class="option-label">
<input type="checkbox" name="field_844[]" class="opt2" id="field_1073_2" value="Nanny">Nanny</label>
<label for="field_1074_3" class="option-label">
<input type="checkbox" name="field_844[]" id="field_1074_3" value="Au Pair" class="opt2">Au Pair</label>
</div>
</fieldset>

Check if n elements contains data attribute set to true

I have a website where there are five checkboxes, a div that contains another divs which each div contains five input hidden that have a value 1 or empty. That value comes from DB.
That's an example to represent the div container with the divs:
<input checkbox value="a">
<input checkbox value="b">
<input checkbox value="c">
<input checkbox value="d">
<input checkbox value="e">
<div class="container">
<div class="content" data-name="combine">
<input type="hidden" value="" data-name="a" />
<input type="hidden" value="" data-name="b" />
<input type="hidden" value="" data-name="c" />
<input type="hidden" value="" data-name="d" />
<input type="hidden" value="" data-name="e" />
</div>
<div class="content" data-name="combine">
<input type="hidden" value="1" data-name="a" />
<input type="hidden" value="" data-name="b" />
<input type="hidden" value="" data-name="c" />
<input type="hidden" value="1" data-name="d" />
<input type="hidden" value="" data-name="e" />
</div>
</div>
In the javascript code i have this snippet:
if(elementLength > 0) {
$("[data-name='combine'] div.tagsProds").each(function() {
var element = $(this);
$.each(enabledChecks,function(i, v) {
if(element.find("input[name='"+v+"']").val() == "") {
element.append("<div class='blocked'></div>");
element.unbind("click");
element.addClass("js_noSortable");
}
});
});
}
The javascript first checks if the div.container has childs and if it has childs the code iterates each child. On each child i iterate the five each checkbox (enabledChecks) and i see if the input hidden are empty. What i need if that if the five input are empty then append the `div.blocked'.

As i don't have enough reputation to write a comment i write an answer.
First, i think that your answer is quite interesting if you're looking to find a way using a jQuery function, but as i don't know any function to do this i think that you can create an array() and when you check if the input has empty value push it to the array, when the loop finishes you check the length of the array() and if it matches with the number of your checkboxes then append the .blocked

If I understand the question correctly, you want to find divs matching some selector that have no child input elements with non-empty values. The .filter method seems like a good fit here:
$("[data-name='"+name+"'] div.tagsProds")
.filter(function() {
// assert that at least one child input has a value
var $inputsWithValue = $(this).find("input[name='avail_" + v + "'][value!='']");
return $inputsWithValue.length === 0;
})
.each(function() {
// now act on those value-less divs
$(this)
.append("<div class='blocked'></div>")
.addClass("js_noSortable")
.unbind("click");
});
Another selector-only option might look like:
$("[data-name='"+name+"'] div.tagsProds:not(:has(input[name='avail_" + v + "'][value!='']))")
.each(function() {
// now act on those value-less divs
$(this)
.append("<div class='blocked'></div>")
.addClass("js_noSortable")
.unbind("click");
});
JSFiddle: http://jsfiddle.net/nrabinowitz/vrx2wk8g/
Note that the examples above follow the selectors in your sample code, but won't work against your sample markup.

Disabling a link until a series of checkboxes are checked

I'm trying to figure out how to disable the following link until a series of 4 or 5 checkboxes have been selected.
<input type="image" src="/wp-content/themes/happy/images/add-to-cart.png" name="Buy" class="wpsc_buy_button" id="product_<?php echo wpsc_the_product_id(); ?>_submit_button" onclick="window.location='http://example.com/store/checkout/';"/>
Thanks!
I'm also kind of retarded when it comes to js and jquery, so the simpler the better, please. I would like to have all the code right there near the element, and not off in a different location, even though that might be the "preferred" method.
Thanks a lot.

You can do something like this
<input type="image" src="/wp-content/themes/happy/images/add-to-cart.png" name="Buy" class="wpsc_buy_button" id="product_<?php echo wpsc_the_product_id(); ?>_submit_button" onclick="if($(this).data("enabled")){window.location='http://example.com/store/checkout/';}"/>
And on check box click do this
$("input").click(function(){
//Here check for this checkbox and all other series of checkbox, if they are checked then
$("img[name=Buy]").data("enabled", true);
//else
$("img[name=Buy]").data("enabled", false);
});

Assuming you have jquery referenced, change your onclick method to something like;
onclick="if($('.checkboxClass').not(':checked').length > 0) window.location='http://example.com/store/checkout/'; else {alert('please tick all the checkboxes'); return 0};
Then add the "checkboxClass" (or whatever class you choose) to all of your checkboxes
<input type="checkbox" class="checkboxClass" value="1" />
<input type="checkbox" class="checkboxClass" value="2" />
And so on.

If you have the following form:
<form method="post" action="" class="my-form">
<p>
<input type="checkbox" /> First item
</p>
<p>
<input type="checkbox" /> Second item
</p>
<p>
<input type="image" src="..." />
</p>
</form>
Use jQuery to check on form submit
$(function() {
$(".my-form").submit(function() {
if ($(".my-form input[type=checkbox]:checked").length < 1)
{
alert("You must select at least one checkbox to proceed.");
return false;
}
}
}

Jquery watch certain fields for certain values

I have some test code here
<input type="radio" name="group1">1
<input type="radio" name="group1">2
<input type="radio" name="group1">3
<br>
<input type="text" name="text1">
<br>
<input type="radio" name="group2">1
<input type="radio" name="group2">2
<input type="radio" name="group2">3
<br>
<input disabled type="submit">
Please can you tell me if there is a way to watch multiple fields so that if their values changes i can enable a button..
So in short instead of having 3 .change rules watching each other... can't i do one piece of code that watches all 3 and if the values equals a particular something it enables the submit button ?
Thanks
Lee

$(':radio').change(function() {
if ($(this).attr('name') == 'group2')
$(':submit').removeAttr('disabled');
});

You can use the click event hander. For e.g.:
$(":radio[name='group1'],:radio[name='group2'],:radio[name='group3']").live("click",function(){
//do something
});

if i correct understood ur question, here it is:
set classes (for less JS code):
<input type="radio" class="g1-1" name="group1">1
<input type="radio" class="g1-2" name="group1">2
<input type="radio" class="g1-3" name="group1">3
<br>
<input type="text" class="text" name="text1">
<br>
<input type="radio" class="g2-1" name="group2">1
<input type="radio" class="g2-2" name="group2">2
<input type="radio" class="g2-3" name="group2">3
<br>
<input disabled type="submit">
JS:
$(function(){
$('input').click( function(){
if ( ($('.g1-2').is(':checked')) && ($('.g2-1').is(':checked')) && ($('.text').val()=="ok" ))
{
// event
}
});
});

Sounds like a candidate for http://knockoutjs.com/ - You associate DOM elements with a client-side view model. When the data model's state changes, the UI updates automatically.

If your jQuery selector matches more than one element, when you bind a callback function to an event, that function will be bound to all the elements the selector matches.
Example:
$('input[type="radio"]').change(function() {
$('body').append('changed');
});
See a working fiddle here