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How can I wait for set of asynchronous callback functions?
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192
You haven't been very specific with your code, so I'll make up a scenario. Let's say you have 1...
mongodb: insert if not exists
...e() call: {upsert:true}. For example:
key = {'key':'value'}
data = {'key2':'value2', 'key3':'value3'};
coll.update(key, data, upsert=True); #In python upsert must be passed as a keyword argument
This replaces your if-find-else-update block entirely. It will insert if the key doesn't exist and ...
Sequence-zip function for c++11?
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Warning: boost::zip_iterator and boost::combine as of Boost 1.63.0 (2016 Dec 26) will cause undefined behavior if the length of the input containers are not the same (it may crash or iterate beyond the end).
Starting from Boost 1.56.0 (2014 Aug 7) you could use boost::combine (the function...
How to split a comma-separated value to columns
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How to negate the whole regex?
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102
Use negative lookaround: (?!pattern)
Positive lookarounds can be used to assert that a pattern ...
NPM - How to fix “No readme data”
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225
Simply adding a README.md file will not fix it, you should write something inside it; at least...
What does the brk() system call do?
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239
In the diagram you posted, the "break"—the address manipulated by brk and sbrk—is the dott...
sed beginner: changing all occurrences in a folder
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edited May 25 '09 at 3:13
answered May 25 '09 at 2:51
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How to get sp_executesql result into a variable?
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254
If you have OUTPUT parameters you can do
DECLARE @retval int
DECLARE @sSQL nvarchar(500);
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