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Sorted collection in Java
...just for the purpose of having a sorted list. It is named (somewhat out of order with the other Sorted* interfaces) "java.util.PriorityQueue". It can sort either Comparable<?>s or using a Comparator.
The difference with a List sorted using Collections.sort(...) is that this will maintain a pa...
getting the last item in a javascript object
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No. Order is not guaranteed in JSON and most other key-value data structures, so therefore the last item could sometimes be carrot and at other times be banana and so on. If you need to rely on ordering, your best bet is to go wi...
Focus Next Element In Tab Index
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Note that using flexbox the order of the elements are different in the DOM than visually in the browser. Just picking the next tabbable element does not work when you change the order of elements using flexbox.
– Haneev
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Tricks to manage the available memory in an R session
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That's a good technique. When files are run in a certain order like that, I often prefix them with a number: 1-load.r, 2-explore.r, 3-model.r - that way it's obvious to others that there is some order present.
– hadley
Sep 4 '09 at 13:02
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Why would one use the Publish/Subscribe pattern (in JS/jQuery)?
... pattern, ignoring the handler for now:
$.subscribe('iquery/action/remove-order', removeOrder);
$container.on('click', '.remove_order', function(event) {
event.preventDefault();
$.publish('iquery/action/remove-order', $(this).parents('form:first').find('div.order'));
});
There is already...
How to save MySQL query output to excel or .txt file? [duplicate]
...ion which
accepts data in CSV format.
Given a query such as
SELECT order_id,product_name,qty FROM orders
which returns three columns of data, the results can be placed into
the file /tmp/orders.txt using the query:
SELECT order_id,product_name,qty FROM orders
INTO OUTFILE '/tmp/orde...
How to sort strings in JavaScript
...cales and options arguments (the one used before IE11) the locale and sort order used are entirely implementation dependent, in other word: Firefox, Safari, Chrome & IE do NOT sort strings in the same order. see code.google.com/p/v8/issues/detail?id=459
– Adrien Be
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Sorting related items in a Django template
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You need to specify the ordering in the attendee model, like this. For example (assuming your model class is named Attendee):
class Attendee(models.Model):
class Meta:
ordering = ['last_name']
See the manual for further reference.
ED...
PostgreSQL - fetch the row which has the Max value for a column
...lue(trans_id) OVER wnd
FROM lives
WINDOW wnd AS (
PARTITION BY usr_id ORDER BY time_stamp, trans_id
ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
);
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Best way to select random rows PostgreSQL
... select * from table where random() < 0.01;
EXPLAIN select * from table order by random() limit 1000;
A quick test on a large table1 shows, that the ORDER BY first sorts the complete table and then picks the first 1000 items. Sorting a large table not only reads that table but also involves rea...