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Possibility of duplicate Mongo ObjectId's being generated in two different collections?
... possibilities, so you judge for yourself how likely it is to get a dupe:
1) Counter overflow: there are 3 bytes in the counter. If you happen to insert over 16,777,216 (2^24) documents in a single second, on the same machine, in the same process, then you may overflow the incrementing counter byte...
Perform an action in every sub-directory using Bash
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182
for D in `find . -type d`
do
//Do whatever you need with D
done
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How to Convert all strings in List to lower case using LINQ?
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182
Easiest approach:
myList = myList.ConvertAll(d => d.ToLower());
Not too much different t...
In Python, how do I create a string of n characters in one line of code?
...e this with the existing Python library? For instance, I need a string of 10 letters:
6 Answers
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How to print full stack trace in exception?
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176
I usually use the .ToString() method on exceptions to present the full exception information (...
How to select a node using XPath if sibling node has a specific value?
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answered Jun 11 '13 at 10:47
Jens EratJens Erat
32.5k1515 gold badges6868 silver badges8686 bronze badges
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Best way to test SQL queries [closed]
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167
You wouldn't write an application with functions 200 lines long. You'd decompose those long fu...
@ character before a function call
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212
the "@" will silence any php errors your function could raise.
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List all commits (across all branches) for a given file
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edited Sep 20 '11 at 1:26
answered Sep 19 '11 at 5:43
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Where are ${EXECUTABLE_NAME} and ${PRODUCT_NAME} defined
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181
The PRODUCT_NAME is defined in the target's Build Settings in the Packaging section. It has th...