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Get the first element of each tuple in a list in Python [duplicate]
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Use a list comprehension:
res_list = [x[0] for x in rows]
Below is a demonstration:
>>> rows = [(1, 2), (3, 4), (5, 6)]
>>> [x[0] for x in rows]
[1, 3, 5]
>>>
Alternately, you could use unpacking instead of x[0]:
res_list = [x for...
Get generic type of java.util.List
...stringListClass = (Class<?>) stringListType.getActualTypeArguments()[0];
System.out.println(stringListClass); // class java.lang.String.
Field integerListField = Test.class.getDeclaredField("integerList");
ParameterizedType integerListType = (ParameterizedType) integer...
How to flatten tree via LINQ?
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– dasblinkenlight
Aug 6 '12 at 15:05
I disagree: compiled, tested, and working with c. Using e doesn't compile. You ...
String length in bytes in JavaScript
...ing, you can do,
function lengthInUtf8Bytes(str) {
// Matches only the 10.. bytes that are non-initial characters in a multi-byte sequence.
var m = encodeURIComponent(str).match(/%[89ABab]/g);
return str.length + (m ? m.length : 0);
}
This should work because of the way UTF-8 encodes multi-...
Split delimited strings in a column and insert as new rows [duplicate]
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70
Here is another way of doing it..
df <- read.table(textConnection("1|a,b,c\n2|a,c\n3|b,d\n4|...
Drop all the tables, stored procedures, triggers, constraints and all the dependencies in one sql st
Is there any way in which I can clean a database in SQl Server 2005 by dropping all the tables and deleting stored procedures, triggers, constraints and all the dependencies in one SQL statement?
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Least common multiple for 3 or more numbers
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answered Sep 29 '08 at 4:37
A. RexA. Rex
30.3k2121 gold badges8585 silver badges9595 bronze badges
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Importing modules from parent folder
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edited Jan 12 '17 at 18:30
MERose
2,79255 gold badges3535 silver badges6060 bronze badges
answered Apr ...
Cannot generate iOS App archive in xcode
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