How to remove this HTML? - javascript

I'd like to remove the following HTML:
Buy It
This HTML is added dynamically (not by me).
How is this done in jquery? Or is it better done in AngularJS?

i would solve this by using css..
.css-button {display: none !important} 
since it is added dynamically you would need a trigger function or search repedetly for that special container -> slows down the page
//EDIT with jQuery if necessary
if you really want to do it with jquery, is it always a certain container where the button appears? you could do something like this:
function removeButton() {
$('.css-button').remove();
}
// Listen DOM changes
$('.theContainer').bind("DOMSubtreeModified", removeButton);
see here: http://davidwalsh.name/dom-events-javascript

You can use .remove():
$('.css-button').remove();

In this case you should use :contains to find the button, keep in mind that is a string search:
$( "a:contains('Buy It')" ).remove()

Related

Run jQuery function onclick

so i implemented a bit of jQuery that basically toggles content via a slider that was activated by an <a> tag. now thinking about it id rather have the DIV thats holding the link be the link its self.
the jQuery that i am using is sitting in my head looks like this:
<script type="text/javascript">
function slideonlyone(thechosenone) {
$('.systems_detail').each(function(index) {
if ($(this).attr("id") == thechosenone) {
$(this).slideDown(200);
}
else {
$(this).slideUp(600);
}
});
}
</script>
i was using this as a index type box so there are several products when you click on the <a> tag that used to be an image* it would render a bit of content beneath it describing the products details:
<div class="system_box">
<h2>BEE Scorecard database</h2>
<p>________________</p>
</div>
the products details are wrapped in this div.
<div class="systems_detail" id="sms_box">
</div>
so when you click on what used to be a image* it would run the slideonlyone('div_id_name') function. the function above then first closes all the other divs with the class name 'system details' and then opens/slides the div with the id that was passed into the slideonlyone function. that way you can toggle products details and not have them all showing at once.
note i only kept the <a> tag to show you what was in there i will be getting rid of it.
note: i had an idea of just wrapping the whole div in an <a> tag but is that good practice?
So now what i am wondering is since you need JavaScript to run onclick on a div tag how do you write it so that it still runs my slideonlyone function?
Using obtrusive JavaScript (i.e. inline code) as in your example, you can attach the click event handler to the div element with the onclick attribute like so:
<div id="some-id" class="some-class" onclick="slideonlyone('sms_box');">
...
</div>
However, the best practice is unobtrusive JavaScript which you can easily achieve by using jQuery's on() method or its shorthand click(). For example:
$(document).ready( function() {
$('.some-class').on('click', slideonlyone('sms_box'));
// OR //
$('.some-class').click(slideonlyone('sms_box'));
});
Inside your handler function (e.g. slideonlyone() in this case) you can reference the element that triggered the event (e.g. the div in this case) with the $(this) object. For example, if you need its ID, you can access it with $(this).attr('id').
EDIT
After reading your comment to #fmsf below, I see you also need to dynamically reference the target element to be toggled. As #fmsf suggests, you can add this information to the div with a data-attribute like so:
<div id="some-id" class="some-class" data-target="sms_box">
...
</div>
To access the element's data-attribute you can use the attr() method as in #fmsf's example, but the best practice is to use jQuery's data() method like so:
function slideonlyone() {
var trigger_id = $(this).attr('id'); // This would be 'some-id' in our example
var target_id = $(this).data('target'); // This would be 'sms_box'
...
}
Note how data-target is accessed with data('target'), without the data- prefix. Using data-attributes you can attach all sorts of information to an element and jQuery would automatically add them to the element's data object.
Why do you need to attach it to the HTML? Just bind the function with hover
$("div.system_box").hover(function(){ mousin },
function() { mouseout });
If you do insist to have JS references inside the html, which is usualy a bad idea you can use:
onmouseover="yourJavaScriptCode()"
after topic edit:
<div class="system_box" data-target="sms_box">
...
$("div.system_box").click(function(){ slideonlyone($(this).attr("data-target")); });
You can bind the mouseenter and mouseleave events and jQuery will emulate those where they are not native.
$("div.system_box").on('mouseenter', function(){
//enter
})
.on('mouseleave', function(){
//leave
});
fiddle
note: do not use hover as that is deprecated
There's several things you can improve upon here. To start, there's no reason to use an <a> (anchor) tag since you don't have a link.
Every element can be bound to click and hover events... divs, spans, labels, inputs, etc.
I can't really identify what it is you're trying to do, though. You're mixing the goal with your own implementation and, from what I've seen so far, you're not really sure how to do it. Could you better illustrate what it is you're trying to accomplish?
== EDIT ==
The requirements are still very vague. I've implemented a very quick version of what I'm imagining you're saying ... or something close that illustrates how you might be able to do it. Left me know if I'm on the right track.
http://jsfiddle.net/THEtheChad/j9Ump/

Hide A element with CSS or Javascript

I have this element in my HTML page:
<a style="display:block;width:728px;height:90px;margin:0 auto;background:#EEE url('/_images/2011images/img_dotco_3.jpg') no-repeat top left; text-decoration:none;color:#000;" href="/domain-registration/dotco-overview.aspx?sourceid=bnrq2co728x90">
<span style="float:right;margin:5px 27px 0 0;width:110px;color:#FFF;text-align:center">
<span style="display:block;font-size:1em;text-align:center">NOW ONLY</span>
<strong style="display:block;font-size:1.6em;text-align:center"><!-- START TAG // Co_RegisterPrice_TLD -->
<span class="Tag_Co_RegisterPrice_TLD"><strong>$35.70</strong>/yr</span>
<!-- End TAG // Co_RegisterPrice_TLD --></strong>
</span>
</a>
I need to hide it with CSS or Javascript. CSS would be the best scenario but Javascript is OK as well.
The fact is that I cannot edit the HTML code at all, so I have no way to delete this item directly. Also this is not parent of any other HTML element, so I do not find an easy way to hide it with CSS.
Also I need to hide this A element even if the background image changes or the link changes, in fact it's not always the same.
I reported all the available HTML.
Here is an example http://subdir.co/help-center/default.aspx
It's the top banner there.
Let me know how to hide it from the page. Thanks.
Try with jQuery:
$('a[href^="/domain-registration/dotco-overview.aspx?sourceid"]').hide();
This hides the a tag with a href attribute starting with /domain-registration/dotco-overview.aspx?sourceid.
Use:
document.getElementById('yourElementId').display=none;
You can traverse the dom tree from the class "Tag_Co_RegisterPrice_TLD" to find the A tag which you can then hide.
If you need to do additional logic then you can access the text (e.g. price/title/url) before deciding to hide.
Use jQuery if raw javascript is to much for you.
Since you cannot change the HTML code, you can't add an identifier to the element in order to select and manipulate it.
But you can use jQuery to select the first 'a' element, and set the 'display' property to 'none'.
I think something like this should do:
$('a:first').css("display","none");
You could try it with css:
a[style][href] {
display: none !important;
}
i think adding class or making some rule for css selector woudn't work, because definition in attribute of the elements overrides another style definition.
It will be easy if you use some javascript library for dom manipulating for example jQuery.
after that you can write something like
$(".sCntSub3 > a").hide()
you can try finding element from browser console. It is easy way how to verify you choose right element
jsFiddle Classname Method DEMO
jQuery via Classname: In this method we "look inside" the anchor for clues.
$(document).ready(function () {
// To disable the line below, just comment it out just like this line is.
$('.Tag_Co_RegisterPrice_TLD').closest('a').hide();
});
jsFiddle ID Method DEMO
jQuery via ID: This time, we don't look inside since anything can change. We now use a div reference!
$(document).ready(function () {
// To disable the line below, just comment it out just like this line is.
// No matter the unique ID code in front of MasterUpdatePanel Div, it will always be matched.
$('[id$="MasterUpdatePanel"]').next('a').hide();
});
Shown here is a Firefox Screenshot of the HTML Page. Notice the Div ID contains ctl00_MasterUpdatePanel. The letters, numbers, and underscore in front of that may change, but not this keyword. Therefore, a match of the "ending part" of the id works!

Values of "class" attribute implicitely expand for certain markup elements

I'm experimenting with a third party library written on top of jQuery.
I noticed, for a number of their widgets, that when your source says, for example,
<div id="myWidgetInst" class="their-widget-class-0" ... </div>
Firebug shows that the resulting DOM element reads:
<div id="myWidgetInst" class="their-widget-class-0 their-widget-class-1 ..." ... </div>
How do they do it? Many thanks.
it's probably jquery !
there's probably a function running adding classes to the elements
Not sure I fully understand your question but when looking at the "regular" source of the website, this source doesn't show any modifications to the DOM that happened due to javascript modifications. Firebug does show these updates.
using jQuery, you can add/remove classes simply by using .addClass("className") or .removeClass("className") function on the element you want to modify
They would add classes to the element with jQuery. For example, if the plugin's purpose was to hide all elements on the page (innovative and highly practical, I know), they could use the following:
$(document).ready(function() {
$("*").addClass("my-widget-made-your-element-invisible");
});
With the CSS:
.my-widget-made-your-element-invisible { display: none; }
The methods in which you can manipulate the class attribute in jQuery include the following:
$("#elem").addClass("a"); // adds the class "a" to elem
$("#elem").removeClass("a"); // removes the class "a" from elem
$("#elem").attr("class", "a"); // gives elem a complete class of "a"
$("#elem").attr("class", ""); // removes all classes from attribute

Using JavaScript to change CSS values

I haven't found a good example of this, I have this CSS snippet.
#divname .jqplot-point-label {
color: #000000;
}
I know how to change CSS if it's just the ID, or just the class, but in this case I'm not sure what the JavaScript would look like.
I'm trying
$('#divname .jqplot-point-label').css({'color':'#000000'});
But that didn't work.
Thanks!
Make sure to wrap your code in ready handler (your code is fine but missing to use ready handler will cause your code not to work):
$(function(){
$('#divname .jqplot-point-label').css({'color':'#000000'});
});
I assume you are including jQuery in your page with correct path.
use $('#divname.jqplot-point-label') as the selector. (no space between the id and class name).
$(#divname .jqplot) is looking for an element with class .jqplot with an ancestor of #divname.

How do I hide an element with the same markup via jquery?

I have two custom dropdown lists that have the same markup. I need to have only one show at a time. Right now, I'm able to open both at the same time. Both should also close when I click off the list.
The same markup for both lists is required, so I can't use unique ID's or additional classes to make this happen.
Here is a link to my fiddle example: http://jsfiddle.net/dg7Lc/29/
Any help would be greatly appreciated, thanks!
-D
Consider adding a data attribute such as 'active' via jquery when you click on one of them, then hide all those that have that attribute.
$('.custom-select').eq(0).hide() will hide the first one.
Use .show() instead of .hide() to show (obviously) and change the index to (1) to get the second one.
First thought would be if you could wrap a span or div around either or both and use that to get around the "same markup" limitation. Other than that, though, I'd suggest using order in page - use .next() and .prev() to get between them, and something like
$("div.custom-select").get(0)
or
$("div.custom-select").get(1)
to select them from outside.
edit: if you can run them off of something like an onmouseover, onchange, or whatnot, it's even easier - the one that's changing will be passed into the function as the "this" parameter. Just hide both, and show this, or show both and hide this.
edit2: similarly, once you have one of them hidden properly - well, that one will be hidden, and respond to the ":hidden" selector. Use that to distinguish between them (and save the distinction as a jquery variable) before you go showing or hiding anything else
Hide the first:
$('.custom-select').first().hide();
Hide the second:
$('.custom-select').last().hide();
And then put these lines of code where needed.
http://jsfiddle.net/dg7Lc/31/
Basically, closing the others:
$('.custom-select').not(this).find('ul').slideUp('fast');
And for closing when clicking outside the box, I used this piece of code but it's a bit dirty:
$("body").click(function(e) {
var should = true;
for($e = $(e.target); should && $e.length; $e = $e.parent()) {
should = !$e.is(".custom-select");
}
if(should) {
$('.custom-select').find('ul').slideUp('fast');
}
});
You can bind a click to the document, that looks to see if they clicked on the custom-select or the document outside it and hides any open lists as it should:
$(document).click(function(ev){
if(!$(ev.target).is('.custom-select span')){ $('.custom-select').find('ul').slideUp('fast'); }
});
Updated JSFiddle

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