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Does List guarantee insertion order?
Say I have 3 strings in a List (e.g. "1","2","3").
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One-line list comprehension: if-else variants
...ssion you're returning for each element. Thus you need:
[ x if x%2 else x*100 for x in range(1, 10) ]
The confusion arises from the fact you're using a filter in the first example, but not in the second. In the second example you're only mapping each value to another, using a ternary-operator exp...
What are the differences between numpy arrays and matrices? Which one should I use?
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edited May 7 at 14:10
hashlash
49944 silver badges1313 bronze badges
answered Apr 11 at 11:52
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Mysql order by specific ID values
...y "order by" using predefined set of column values (ID) like: order by (ID=1,5,4,3) so I would get record 1, 5, 4, 3 in that order out?
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importing pyspark in python shell
... I have the same issue. (See http://geekple.com/blogs/feeds/Xgzu7/posts/351703064084736)
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Is there a way to iterate over a slice in reverse in Go?
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No there is no convenient operator for this to add to the range one in place. You'll have to d...
Java variable number or arguments for a method
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edited Oct 20 '17 at 1:43
ErikE
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How to select multiple rows filled with constants?
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15 Answers
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Generating random integer from a range
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13 Answers
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Convert a byte array to integer in Java and vice versa
... the ByteBuffer. It can do all the work for you.
byte[] arr = { 0x00, 0x01 };
ByteBuffer wrapped = ByteBuffer.wrap(arr); // big-endian by default
short num = wrapped.getShort(); // 1
ByteBuffer dbuf = ByteBuffer.allocate(2);
dbuf.putShort(num);
byte[] bytes = dbuf.array(); // { 0, 1 }
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