The approach you suggest is not guaranteed to give you the result you're looking for - what if you had a tbody
for example:
<table id="myTable">
<tbody>
<tr>...</tr>
<tr>...</tr>
</tbody>
</table>
You would end up with the following:
<table id="myTable">
<tbody>
<tr>...</tr>
<tr>...</tr>
</tbody>
<tr>...</tr>
</table>
I would therefore recommend this approach instead:
$('#myTable tr:last').after('<tr>...</tr><tr>...</tr>');
You can include anything within the after()
method as long as it's valid HTML, including multiple rows as per the example above.
Update: Revisiting this answer following recent activity with this question. eyelidlessness makes a good comment that there will always be a tbody
in the DOM; this is true, but only if there is at least one row. If you have no rows, there will be no tbody
unless you have specified one yourself.
DaRKoN_ suggests appending to the tbody
rather than adding content after the last tr
. This gets around the issue of having no rows, but still isn't bulletproof as you could theoretically have multiple tbody
elements and the row would get added to each of them.
Weighing everything up, I'm not sure there is a single one-line solution that accounts for every single possible scenario. You will need to make sure the jQuery code tallies with your markup.
I think the safest solution is probably to ensure your table
always includes at least one tbody
in your markup, even if it has no rows. On this basis, you can use the following which will work however many rows you have (and also account for multiple tbody
elements):
$('#myTable > tbody:last-child').append('<tr>...</tr><tr>...</tr>');
Since the question refers to a single element, this code might be more suitable:
// Checks CSS content for display:[none|block], ignores visibility:[true|false]
$(element).is(":visible");
// The same works with hidden
$(element).is(":hidden");
It is the same as twernt's suggestion, but applied to a single element; and it matches the algorithm recommended in the jQuery FAQ.
We use jQuery's is() to check the selected element with another element, selector or any jQuery object. This method traverses along the DOM elements to find a match, which satisfies the passed parameter. It will return true if there is a match, otherwise return false.
Best Answer
You can't break from the
each
method—it emulates the nativeforEach
method's behavior, and the nativeforEach
doesn't provide to escape the loop (other than throwing an exception).However, all hope is not lost! You can use the
Array.every
method. :)From that link:
In other words, you could do something convoluted like this (link to JSFiddle):
This will alert
1
through3
, and then "break" out of the loop.You're using underscore.js, so you'll be pleased to learn that it does provide an
every
method—they call itevery
, but as that link mentions, they also provide an alias calledall
.