I am trying to get class of fourth cell using eq() selector. Its working without eq selector like this :
alert($cell.closest( "td" ).next().next().next().attr("class"));
I tried using multiple variation of eq() but it's not working please help.
None of the below are working.
$cell = $(this);
alert($cell.find( "td" ).eq(3).attr("class"));
alert($cell.closest( "td" ).eq(3).attr("class"));
alert($cell.( "td:eq(3)" ).attr("class"));
That's not how the eq method work.
Given a jQuery object that represents a set of DOM elements, the .eq() method constructs a new jQuery object from one element within that set. The supplied index identifies the position of this element in the set.
As the closest method returns one element, eq(3) returns an empty set in here. You can use the nextAll method for creating a set of next siblings. Then eq(3) will return the fourth element in that set:
$cell.closest("td").nextAll().eq(3).attr("class");
Please note that if this here refers to a td element then closest('td') does nothing.
Related
I have the followings defined :
var excludedFiltersPanel = $("#excludedFiltersPanel");
var includedfiltersPanel = $("#includedfiltersPanel");
where *Panel is just a div.
in excludedFiltersPanel there are some div's with attribute data-iscorefilter="true" e.g. :
<div id="filterPanel-LastName" class="filterPanel" data-iscorefilter="true">
<Some Stuff here!>
</div>
I am trying to get them and move them to includedfiltersPanel:
It seems neither of these is a correct syntax:
excludedFiltersPanel.('[data-iscorefilter="true"]')
excludedFiltersPanel.$('[data-iscorefilter="true"]')
1.What is the correct syntax?
2.How do I append them to includedfiltersPanel? (I know how to append a single item, but not sure what is the common good practice here, e.g. using for loop or some JQuery magic)
Since excludedFiltersPanel there are some div's with attribute data-iscorefilter="true"
Use .find()
Description: Get the descendants of each element in the current set of matched elements, filtered by a selector, jQuery object, or element.
It would look like :
excludedFiltersPanel.find('[data-iscorefilter="true"]')
I want to reload a particular div, which has an id corresponding to a table element's id... (the div has only one table child).
the alert says tID is undefined.
javascript:
function (msg) {
var tID = $("table", msg).attr('id');
alert(tID);
$("#reloadme_"+tID).html(msg);
}
html:
<div id="reloadme_2036">
<table id="2036" class="customCSSclass">
...table contents...
</table>
</div>
Where have I gone wrong?
find looks for descendants of the current set of elements inside the jQuery object, you should use .filter which filters the elements in the jQuery object itself:
$('<table id="001">[...]</table>')
//the jQuery object will contain a reference to the parsed <table> element,
//so you have to .filter() the jQuery object itself to extract it
Of course, if it is the only element inside the jQuery object, there is no need for filtering. =]
Also, you'd use .find for e.g. looking for tr/tds (or any other element(s)) that are descendant of the table element referenced inside of your jQuery object.
Maybe this is what you're looking for?
function reload(msg) {
var tID = msg.match(/id="(\d{1,4})"/i)[1]; //find 1 to 4 digits in the id attribute
alert(tID); //alerts 2036
$("#reloadme_"+tID).html(msg); //adds the content to the div
}
reload('<table id="2036" class="customCSSclass"> ...table contents... </table>');
If so, what you are likely looking for is javascript's .match() method which will find the id number within a string.
Check out the JSFiddle.
You have to try like this
var msg='<table id="2036" class="customCSSclass"></table>';
alert($(msg).attr("id"));
I'm by no means a jQuery (or JavaScript) expert so forgive me if I'm misunderstanding or overlooking something. I have the following HTML:
<html>
<body>
<div class="ted">Ted</div>
<div class="ted">Ted</div>
<div class="tim">Tim</div>
<div class="ted">Ted</div>
<div class="tim">Tim</div>
</body>
</html>
And the following JS:
$('.ted').click(function() {
alert($(this).index());
});
When I click a div with the class '.ted' the alert should show the index of that div.
Clicking the first div alerts '0' (expected), the second div alerts '1' (expected). However, clicking the last '.ted' div (the fourth in the list) alerts '3' - why is this not giving an index of 2? (as JS arrays are 0 based) and this is the third '.ted' div?
It's as if $('.ted') is actually bringing back all the divs in the list?
Example here: http://jsfiddle.net/nha2f/6/
The .index() method docs make this behaviour clear. Here's the relevant part (emphasis added):
If no argument is passed to the .index() method, the return value is an integer indicating the position of the first element within the jQuery object relative to its sibling elements.
Since the third element that matches your selector is actually the fourth child of its parent, it has an index of 3.
Continue reading through the documentation to find the solution to your problem:
If a selector string is passed as an argument, .index() returns an integer indicating the position of the original element relative to the elements matched by the selector.
So, you can pass the same selector to .index() and it will return the index of the element relative to the matched set:
alert($(this).index(".ted"));
.index() returns the index of the clicked element in it's parent, relative to it's siblings. Not compared to other divs with the same event listeners / class / id. Your third '.ted' div is the fourth child of your body.
To get the behavior you want, add a selector to your index call: Fiddle
$('.ted').click(function() {
alert($(this).index(".ted"));
});
When you pass a selector into index, it tells jQuery to look for the element in that set. If you don't, it looks to see where it is relative to all of its sibling elements.
Or alternately, remember the list of ted elements and then invert things: Fiddle
var teds = $(".ted");
teds.click(function() {
alert(teds.index(this));
});
When you pass an element into index, that tells jQuery to look for that element in the set.
the index is the child within the parent. If you want to enumerate the .ted elements try this:
$('.ted').each( function( i, a ){
$(a).click( function(){
alert( i ); // <- should be 0, 1 or 2.
} );
} );
I have some select element in a page with css style set for them.I use this selector for select all them :
$('.Field3')
and with each loop I want to get selected index of them,but when I change one of them selected item I get selected index set for all.
I create a jsFiddle for it.please change a select element item and click on the button:
http://jsfiddle.net/uLvyS/
$(this + "option:selected")
does not make much sense. In the function passed to .each, this is a jQuery object, not a string. You cannot magically turn a jQuery object into a selector.
What you want is .find, which finds descendants of the element(s) in the jQuery object: http://jsfiddle.net/uLvyS/1/.
$(this).find("option:selected")
I have this javascript code which works fine
var QuestionID = panel.siblings('.QuestionIDWrapper').children('input[type=hidden]').val();
but if I convert it to use a multi level jQuery selector like this:
var QuestionID = panel.siblings('.QuestionIDWrapper input[type=hidden]').val();
I don't get any value in QuestionID.
Have a look at the docs: http://api.jquery.com/siblings/
You didn't provide the actual markup, but I assume that while .QuestionIDWrapper is a silbing, input[type=hidden] is not a direct silbing, only a silbings child. (and not matched therefore)
The second one will only select a sibling of panel if it matches the provided selector. Since your input is a child of one of panel's siblings, then it is not at the same level (not a sibling).
.QuestionIDWrapper input[type=hidden] - for this to work input element must be
immidiate child of QuestionIDWrapper class element.
You are using : Descendant Selector (“ancestor descendant”)
Where as in the first one you are seching for the childer elemtn with the specific selector.