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Hide Text after a tag using jQuery

I would like to hide certain text after a tag.
My HTML is:
<div class="listing_detail col-md-4"><strong>Living Room:</strong> Yes</div>
<div class="listing_detail col-md-4"><strong>Kitchen:</strong> No</div>
jQuery:
$($('.listing_detail strong')[0].nextSibling).wrap('<span style="display:none"></style>');
The jQuery above only removes the text from the first element and not both.
How can I modify it so that it removed the text from both elements.
Fiddle

Just consider looping through your elements and hiding the next sibling for each <strong> element via the each() function :
// Loop through each strong element
$('.listing_detail strong').each(function(){
// Find it's next sibling and wrap it
$(this.nextSibling).wrap('<span style="display:none"></style>');
});
Example
$('.listing_detail strong').each(function(){
$(this.nextSibling).wrap('<span style="display:none"></style>');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="listing_detail col-md-4"><strong>Living Room:</strong> Yes</div>
<div class="listing_detail col-md-4"><strong>Kitchen:</strong> No</div>

Why don't you use a .each() and hide 'em one by one?
$('.listing_detail strong').each( function(){
$($(this)[0].nextSibling).wrap('<span style="display:none"></style>');
});

why not simply
$('.listing_detail strong').hide();
?

also add this to remove text from second element:
$($('.listing_detail strong')[1].nextSibling).wrap('<span style="display:none"></style>');
so it will be:
$($('.listing_detail strong')[0].nextSibling).wrap('<span style="display:none"></style>');
$($('.listing_detail strong')[1].nextSibling).wrap('<span style="display:none"></style>');

Try this:
$($('.listing_detail strong')[0].nextSibling).wrap('<span style="display:none"></style>');
$($('.listing_detail strong')[1].nextSibling).wrap('<span style="display:none"></style>');

I think the problem was the [0] selector on $('.listing_detail strong'). Use a traversal method like 'forEach' instead.
https://jsfiddle.net/d4gyv6ed/12/
$('.listing_detail strong').each(function(index){
$(this).siblings().wrap('<span style="display:none"></style>');
});

It would be best to not get all tricky with indexing if you do not have to.
Update your markup like this:
<div class="listing_detail col-md-4"><strong>Living Room:</strong>
<div class="hide-this-tag">Yes</div>
</div>
<div class="listing_detail col-md-4"><strong>Kitchen:</strong>
<div class="hide-this-tag">No</div>
</div>
Then do this with jQuery:
$(".hide-this-tag').hide();
Or just simply use css:
.hide-this-tag {
display:none;
}

If all you were looking for are text nodes within a particular tag, this is the approach that works best, irrespective of the positioning of the text node within the tag.
Try using .contents() and .filter() methods and this.nodeType == 3 like so:
$('.listing_detail').contents().filter(function() {
return this.nodeType == 3;
})
.wrap('<span style="display:none;"/>');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="listing_detail col-md-4"><strong>Living Room:</strong> Yes</div>
<div class="listing_detail col-md-4"><strong>Kitchen:</strong> No</div>

Whats I'd do is create a CSS class which has hidden properties and add them to the containers with your jQuery.
This gives you the freedom of adding and removing classes in the future with ease.
This should help you do exactly that
https://api.jquery.com/addclass/
And to apply it for multiple divs use each function in jquery
https://api.jquery.com/each/

Add elements without removing existing content

I use jQuery .html() but is it possible to add an element without to removing the other HTML elements?
My code look so:
<div id="contentboxes">
<div class="con1">content 1</div>
<div class="con1">content 2</div>
</div>
I have tried this with jquery:
$('#contentboxes').html('<div class="con3">Content 3</div>');
But this command removes my other 2 boxes, is it possible to add without to removing other boxes?

use .append() instead of .html().

$('#contentboxes').append('<div class="con3">Content 3</div>');
http://api.jquery.com/append/

Remove elements by class name with dojo

How can I remove all elements found by a class name.
I want to do this using the dojo framework.

Try with this:
dojo.query(".class_name").forEach(dojo.destroy);
DEMO

Try the below code.
<div id="list">
<div class="odd">One</div>
<div class="even">Two</div>
<div class="odd">Three</div>
<div class="even">Four</div>
<div class="odd">Five</div>
<div class="even">Six</div>
</div>
dojo.query(".odd").forEach(function(node, index, nodelist){
// for each node in the array returned by dojo.query,
// execute the following code
dojo.remove(node);
});
Referred below links :
https://dojotoolkit.org/reference-guide/1.7/dojo/destroy.html
http://dojotoolkit.org/documentation/tutorials/1.6/using_query/
Thanks,
Siva

jQuery selector only first-level div

Given this HTML:
​<div class="foo">
select this
<div class="foo">​don't select this</div>
</div>
<div class="foo">
select this
</div>
What would be the selector to grab just the divs on the first level, not the nested one?
So the query ​$('.foo WHATEVER').length should return 2.
See the jsfiddle here.

You can use > child selector:
$('body > .foo').length;
http://jsfiddle.net/pSBxv/

Maybe something like this? Where foo is not a descendant?
$('.foo').not('.foo .foo').length
http://jsfiddle.net/DmDBV/

You could use body as a parent element and select children of it using the Child Selector
$('body > .foo').length
Demo

Move existing div to the body of HTML

I want to move an existing div which is inside another one to the body of HTML.
For example i have:
<body><div1><div2>blah</div2></div1></body>
I would like it to make:
<body><div1></div1><div2>blah</div2></body>
Any suggestions?

Give your divs some IDs:
<body>
<div id="one">
<div id="two">
</div>
</div>
</body>
Then use appendTo
$('#two').appendTo('body');

$('div2').appendTo('body');
(you'll have to change div2 to a proper selector of course)

use some combination of remove and append to achieve ur out put.
jQuery Remove Method
jQuery Append Method