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How do I sort a list by different parameters at different timed
..., a positive one if o1 is greater, and zero if they are equal. Multiplying by -1 reverses the result, which is the idea of decending (the opposite of the usual ascending order), while leaving it as zero if they were equal.
– Yishai
Dec 4 '13 at 14:05
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How do I update the notification text for a foreground service in Android?
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to clarify further: you can't cancel() a Notification set by startForeground(). You have to remove the foreground status of the service itself (using stopForeground() if you want to make ticker text appear again. I lost hours because these answers led me to believe it was in fact po...
How do I delete a fixed number of rows with sorting in PostgreSQL?
... FROM logtable
WHERE ctid IN (
SELECT ctid
FROM logtable
ORDER BY timestamp
LIMIT 10
)
The ctid is:
The physical location of the row version within its table. Note that although the ctid can be used to locate the row version very quickly, a row's ctid will change if it is updat...
python pandas dataframe to dictionary
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If you want a simple way to preserve duplicates, you could use groupby:
>>> ptest = pd.DataFrame([['a',1],['a',2],['b',3]], columns=['id', 'value'])
>>> ptest
id value
0 a 1
1 a 2
2 b 3
>>> {k: g["value"].tolist() for k,g in ptest.groupby("id"...
Why does jQuery or a DOM method such as getElementById not find the element?
What are the possible reasons for document.getElementById , $("#id") or any other DOM method / jQuery selector not finding the elements?
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TypeScript sorting an array
...ould like to add that if you have an array of objects and you wish to sort by key then its almost the same, this is an example of one that can sort by both date(number) or title(string):
if (sortBy === 'date') {
return n1.date - n2.date
} else {
if (n1.title > n2.title) {...
Android Text over image
...guide has a great example of this here: Android Layout Tricks #3: Optimize by merging.
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Validate uniqueness of multiple columns
... the following example:
database table records are supposed to be unique by n fields;
multiple (two or more) concurrent requests, handled by separate processes each (application servers, background worker servers or whatever you are using), access database to insert the same record in table;
each ...
How to change ProgressBar's progress indicator color in Android
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Please help me. I try to create greenprogress.xml by copy your code but the Android Studio 0.4.6 mark <layer-list> as and error "Element-list must be declared" what should I do?
– UmAnusorn
Feb 25 '14 at 9:22
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How to COUNT rows within EntityFramework without loading contents?
... No, he needs the count of the entities in MyTable referenced by the one entity with ID = 1 in MyContainer
– Craig Stuntz
May 20 '09 at 21:47
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