I have the following HTML structure:
<div collection>
<h2>Title</h2>
</div>
<hr>
<div collection>
<h2>Title</h2>
</div>
<hr>
<div collection>
<h2>Title</h2>
</div>
I am trying to write a function that passed an integer argument, it will clone each of those DIVs below themselves. So for example if I pass a 1, there will be no changes; with 2, there will be 2 DIVs, then other content, then 2 DIVs again, etc.
The problem is easy so far, because I can just use a jQuery selector and clone the DIVs, but it only works if the function is called once. If a second time in the future I want to call the function again, it will apply to the "new" elements as well... I have no idea how to proceed with this. Any idea?
Just give the clones an identifying feature, such as a class, and remove them prior to the operation.
You can give some unique id or class to your div, then, when you copy it, don't add this unique attribute to newly created elements. This will help you to identify original element when copy will be executed for second time.
<div collection id="title-div">
<h2>Title</h2>
</div>
Related
I have a question about dom navigation with jquery. I'm trying to find an element with a given class that is closest in the dom following a given element.
I have a table like structure, created through divs and styled in css. I have an element being edited, and when the user presses enter I want to focus the following editable element. However, it's not a sibling of the element being edited.
HTML
<div class="calendarEntry">
<div when="2014,9,18" class="when">Sep 18</div>
<div class="items">
<div class="item">
<div code="ABC" class="type">ABC123</div>
<div offered="2014,9,15" class="offered dateish">Sep 15
<div class="offer editable">10</div>
<div class="sku editable">TH1</div>
<button>Publish</button>
</div>
</div>
<div class="item">
<div code="DEF" class="type">DEF321</div>
<div offered="2014,9,14" class="offered dateish">Sep 14
<div class="offer editable">10</div>
<div class="sku editable">TH2</div>
<button>Publish</button>
</div>
</div>
<div class="item">
<div code="GHI" class="type">GHI852</div>
<div offered="2014,9,12" class="offered dateish">Sep 12
<div class="offer editable">10</div>
<div class="sku editable">TH3</div>
<button>Publish</button>
</div>
</div>
</div>
</div>
Note: There are multiple calendar entries on the page.
Say the user is editing the offer of the DEF312 item. When they hit enter I want to edit the offer of GHI852. I have the code to make the div editable, by replacing it with a text field with a class of offer editing. If they're editing the final offer in this calendar entry, then the enter key should focus the first editable offer of the following calendar entry, if there is one. If we're at the bottom of the list I don't want to wrap back to the top (which I think would overly complicate matters anyway).
The bit I'm stuck with is how to find the next offer (all offers are editable).
Here's what I've tried:
var nextOffer = $('.offer').find('.editing').next('.editable');
Clearly, this doesn't work. The problem is that the following editable offer isn't a sibling of the current offer being edited, so next() doesn't work for me. The following offer could be in the current calendar entry, or it's just as likely to be in the next calendar entry. Either way, it's a few divs away, at varying depths.
Can I even do this with jquery dom traversals, or am I better just brute forcing it through javascript (i.e. looping through all .editable instances and returning the one after .editing?
Adding the class 'editing' to simulate the the input:
<div class="item">
<div code="DEF" class="type">DEF321</div>
<div offered="2014,9,14" class="offered dateish">Sep 14
<div class="offer editable">10</div>
<div class="sku editable editing">TH2</div>
<button>Publish</button>
</div>
</div>
you can do:
function findEditable(currentItem) {
var nextEditable = undefined,
selectors = [".item", ".calendarEntry"];
$.each(selectors , function (idx, selector) {
var ref = currentItem.closest(selector);
nextEditable = ref.parent()
.children("div:gt(" + ref.index() + ")")
.find(".offer.editable")
.first();
return nextEditable.length === 0;
})
return nextEditable;
}
findEditable($(".editing")).css({
color: 'red'
});
jsfiddle demo
You can use parents() to get the .offered element which contains the .offer element like so:
var offered = $('.offer').find('.editing').parents('.offered');
From that you can use next() to get into the .offered element's sibling .item element, and find the .editable element within that:
offered.next('.item').find('.editable');
JSFiddle demo. Note that I've manually added this .editing element within your DEF321 item's .offer element - I assume this gets added dynamically on your side, but either way isn't included in your question.
Edit: The HTML in the question has now been changed. Based on this, instead of getting the .offered parent, you'd get the .item parent:
var item = $('.offer').find('.editing').parents('.item');
And proceed in the same way as before:
item.next('.item').find('.editable');
JSFiddle demo.
try this
var current=document.activeElement,
all=$(".editable"),
index=all.indexOf(current),
next=all[index+1]
It first finds the current element and the list of elements,
then it will find the current element in the list.
It will then add 1 to the index and select it from the list.
To extend the array with the indexOf function;
if(!Array.prototype.indexOf){
Array.prototype.indexOf=function(e/*,from*/){
var len=this.length>>>0,
from=Number(arguments[1])||0;
from=(from<0)?Math.ceil(from):Math.floor(from);
if(from<0)from+=l;
for(;from<len;from++){
if(from in this&&this[from]===e)return from;
}
return -1;
};
}
I have the next code dynamically created using JQuery. Theere are multiple row class divs placed one under the other.
<div class="row">
....
</div>
<div class="row">
<div class="line_type"></div>
<div class="download_value"></div>
<div class="flag"></div>
<div class="email"></div>
<div class="prize"></div>
</div>
<div class="row">
....
</div>
After i create these divs I have a "pointer" to a specific div which is of class row. In JQuery, how do i make it so I go down the DOM tree, until i reach the div of class line_type and download_value and remove them both, and also I'd like to go one more node down, at the div of type email and change some of it's CSS attributes.
I was not able to find anything on the web, maybe it's cause i'm a noob at these still.
I have a "pointer" to a specific div which is of class row ->
Assuming that you have the this object of the corresponding div with class row.. then you can use .find to get the line_type and download_value inside that div.
$(this).find('.line_type').remove();
$(this).find('.download_value').remove();
Then you can use the same .find to get the div with class email and access the .css
$(this).find('.email').css(/* You code*/);
Assuming row_pointer points to the row in question:
$('.line_type, .download_value', row_pointer).remove();
$('.email', row_pointer).css(...);
check this out
$('div.row').bind('click', function() {
$this = $(this);
$('div.line_type, div.download_value', $this).remove();
$('div.email', $this).css('background-color', 'red');
});
http://jsfiddle.net/YvyE3/
select nth child like this I want to select seconds child .
$(this).prev().children[1].removeClass("necry").addClass("necry_er");
And this HTML
<div class="reg_label">
<div class="def">Family</div>
<div class="necry">Necessary Field</div>
<div class="clear"> </div>
</div>
I expect this result:
<div class="necry_er">Necessary Field</div>
Use eq() to reduce a set of matched elements to the one at the specified index.
$(this).prev().children().eq(1).removeClass("necry").addClass("necry_er");
There's also a :nth-child selector:
$('#elementID:nth-child(2)').doSomething();
To just swap the two classes you can do:
$('.necry').toggleClass('necry necry_er');
How exactly to go about finding the element you want is a little hard to tell, as there is no explanation as to what this is or what context it is in ?
what about something like this?
var nec = $(this).parent().find(".necry");
nec.removeClass("necry");
nec.addClass("necry_er");
Suppose i have this structure of elements:
<div class="parent">
<div class="something1">
<div class="something2">
<div class="something3">
<div class="something4"></div>
</div>
</div>
</div>
</div>
And code like this:
$(".something4").click(function(){
//i could do it like this...
$(this).parent().parent().parent().parent().parent();
});
But that seems to be stupid, is there a better way to do this?
also i can't just say $(.parent) because there are many divs like this with class parent in my page.
Use .closest(selector). This gets the first element that matches the selector, beginning at the current element and progressing up through the DOM tree.
$('.something4').click(function() {
$(this).closest('.parent');
});
Use .closest():
$('.something4').click(function() {
$(this).closest('.parent');
});
I think you should try this
$(this).parents(".parent");
But I don't know where on the page are the other divs with this class :)
You could always use .parentNode (standard JavaScript). It's generally a bad idea to use class names that coincide with function/variable names from the library you're using (this goes for any language). Making your class names more unique is a better approach (for instance, "scparent" instead of "parent", if the name of your application was "Super Calculator" or something). This avoids conflicts such as the one you're describing.
I would caution using .closest(), simply because you may create a function like this:
function getParentElem() {
return $(this).closest('div');
}
And it would grab the parent div's in your code just fine, but if down the road you add a table for displaying data, and you run the function through a child element of the table, you will have to create another implementation that selects the table element, because that's what you now want:
<div id="tableParent">
<table id="dataTable">
<tr id="target1">
<td>Some data.</td>
</tr>
</table>
</div>
By using your function getParentElem() on the tr element, you'll end up grabbing the div with id="tableParent", rather than the actual parent, which is the table element. So, unless you've delineated your parent classes appropriately all the way through your code (which can be a pain and isn't always efficient), you may run into problems. Especially if at any point you're creating elements programmatically, or reading in data from another 3rd-party library or script.
Not saying it's not good to use .closest()... just pointing out a possible "gotcha".
i would suggest adding to the div parent an id like 'parent_1' etc. and in every son you keep the id in the rel attr
<div id="parent_1" class="parent">
<div rel="1" class="something1">
<div rel="1" class="something2">
<div rel="1" class="something3">
<div rel="1" class="something4"></div>
</div>
</div>
</div>
</div>
$(".something4").click(function(){
//i could do it like this...
$('#parent_' + $(this).attr('rel'));
});
I have a page with two divs in it, one inside the other like so:
<div id='one'>
<div id='two'></div>
</div>
I want div one to change class when it is clicked on, then change back when div two is selected.
I'm completely new to javascript, but I've managed to find a simple command that makes div one change when I click it.
<div id='one' class='a' onclick="this.className='b';">
<div id='two'></div>
</div>
Now I just need an equally simple way to change div one back when number two is clicked.
I've tried changing "this.className" to "one.classname," and for some reason that worked when I was working with images, but it doesn't work at all with divs
<div id='one' class='a' onclick="this.className='b';">
<div id='two' onclick="one.className='a';">
This does not work.
</div>
</div>
Essentially I'm wondering if there is a substitute for the javascript "this" that I can use to target other elements.
I've found several scripts that will perform the action I'm looking for, but I don't want to have to use a huge, long, complicated script if there is another simple one like the first I found.
You can use document.getElementById
<div id='two' onclick="document.getElementById('one').className='a'; return false;">
This does not work.
</div>
This would work:
document.getElementById('one').className = 'a';
you could get the element by id with:
document.getElementById("one")