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Check if a string contains another string
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390
Use the Instr function
Dim pos As Integer
pos = InStr("find the comma, in the string", ",")
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Check if list contains any of another list
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201
You could use a nested Any() for this check which is available on any Enumerable:
bool hasMatc...
Select rows which are not present in other table
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+500
There are basically 4 techniques for this task, all of them standard SQL.
NOT EXISTS
Often fastest in Postgres.
SELECT ip
FROM ...
What's the difference between lists enclosed by square brackets and parentheses in Python?
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Ondrej K.
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answered Jan 17 '12 at 19:04
jterracejterrace
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Converting Python dict to kwargs?
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answered Apr 19 '11 at 0:48
unutbuunutbu
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Storing Image Data for offline web application (client-side storage database)
...e an offline web application using appcaching. I need to provide it about 10MB - 20MB of data that it will save (client-side) consisting mainly of PNG image files. The operation is as follows:
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C++ template typedef
...;
The type Vector<3> is equivalent to Matrix<3, 1>.
In C++03, the closest approximation was:
template <size_t N>
struct Vector
{
typedef Matrix<N, 1> type;
};
Here, the type Vector<3>::type is equivalent to Matrix<3, 1>.
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mongodb group values by multiple fields
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207
TLDR Summary
In modern MongoDB releases you can brute force this with $slice just off the basi...
Using member variable in lambda capture list inside a member function
The following code compiles with gcc 4.5.1 but not with VS2010 SP1:
4 Answers
4
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How to break out of a loop in Bash?
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It's not that different in bash.
done=0
while : ; do
...
if [ "$done" -ne 0 ]; then
break
fi
done
: is the no-op command; its exit status is always 0, so the loop runs until done is given a non-zero value.
There are many ways you could set and te...