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PHP Sort Array By SubArray Value
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answered Mar 19 '10 at 13:14
kennytmkennytm
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How to apply a function to two columns of Pandas dataframe
...s Series object, and then index the Series to get the values needed.
In [49]: df
Out[49]:
0 1
0 1.000000 0.000000
1 -0.494375 0.570994
2 1.000000 0.000000
3 1.876360 -0.229738
4 1.000000 0.000000
In [50]: def f(x):
....: return x[0] + x[1]
....:
In [51]:...
How do I convert a dictionary to a JSON String in C#?
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There should be a page on every open project telling you: "Hey, most of the time, you'll only want to execute this 10 lines algo. Here's the...
Adding rounded corner and drop shadow to UICollectionViewCell
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edited Apr 6 '18 at 3:34
andrewtweber
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ans...
How to make an enum conform to a protocol in Swift?
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answered Jun 4 '14 at 8:35
Hu QiangHu Qiang
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What is the difference between String.slice and String.substring?
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edited Jan 4 '19 at 4:02
Solomon Ucko
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How exactly to use Notification.Builder
...been added to the Support Package so we can use this to support API level v4 and up:
http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html
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Java integer to byte array
I got an integer: 1695609641
13 Answers
13
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How to check if an element is in an array
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Swift 2, 3, 4, 5:
let elements = [1, 2, 3, 4, 5]
if elements.contains(5) {
print("yes")
}
contains() is a protocol extension method of SequenceType (for sequences of Equatable elements) and not a global method as in
earlier releas...
Convert decimal to hexadecimal in UNIX shell script
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echo "obase=16; 34" | bc
If you want to filter a whole file of integers, one per line:
( echo "obase=16" ; cat file_of_integers ) | bc
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