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What's the magic of “-” (a dash) in command-line parameters?
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edited Nov 8 '11 at 3:15
answered Nov 8 '11 at 3:09
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Which rows are returned when using LIMIT with OFFSET in MySQL?
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It will return 18 results starting on record #9 and finishing on record #26.
Start by reading the query from offset. First you offset by 8, which means you skip the first 8 results of the query. Then you limit by 18. Which means you conside...
In c++ what does a tilde “~” before a function name signify?
...See https://www.ibm.com/support/knowledgecenter/en/ssw_ibm_i_74/rzarg/cplr380.htm
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Is it possible to have multiple statements in a python lambda expression?
...d in the heapq module.
>>> import heapq
>>> l = [5,2,6,8,3,5]
>>> heapq.nsmallest(l, 2)
[2, 3]
So just use:
map(lambda x: heapq.nsmallest(x,2)[1], list_of_lists)
It's also usually considered clearer to use a list comprehension, which avoids the lambda altogether:
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Git alias with positional parameters
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edited Mar 4 '18 at 13:20
Eugen Konkov
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How to concatenate strings with padding in sqlite
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387
The || operator is "concatenate" - it joins together the two strings of
its operands.
Fr...
git ahead/behind info between master and branch?
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edited Dec 5 '18 at 8:44
Steve Chambers
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Unsigned keyword in C++
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tacaswell
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answered Jan 20 '10 at 8:14
futureelite7...
Error to run Android Studio
...ist | grep -i jdk
If not, install JDK
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update && sudo apt-get install oracle-java8-installer
After the installation you have to enable the jdk
update-alternatives --display java
Check if Ubuntu uses Java JDK 8
java -version
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MySql: Tinyint (2) vs tinyint(1) - what is the difference?
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98
It means display width
Whether you use tinyint(1) or tinyint(2), it does not make any differenc...