大约有 40,000 项符合查询结果（耗时：0.0875秒） [XML]
How can I detect when an Android application is running in the emulator?
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This is what I had to update to after using the answer from @Aleadam for quite awhile (it stopped working for me).
– ckbhodge
Jul 8 '16 at 10:20
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Unmangling the result of std::type_info::name
...n the attention this question / answer receives, and the valuable feedback from GManNickG, I have cleaned up the code a little bit. Two versions are given: one with C++11 features and another one with only C++98 features.
In file type.hpp
#ifndef TYPE_HPP
#define TYPE_HPP
#include <string>...
Differences between ExpandoObject, DynamicObject and dynamic
...the API but the why behind the API ? e.g. Why doesn't ExpandoObject derive from DynamicObject, which looks the defacto base type for ruby's 'method_missing' based programming.
– Gishu
Jun 14 '12 at 6:26
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Mongodb Explain for Aggregation framework
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Starting with MongoDB version 3.0, simply changing the order from
collection.aggregate(...).explain()
to
collection.explain().aggregate(...)
will give you the desired results (documentation here).
For older versions >= 2.6, you will need to use the explain option for aggregat...
Should functions return null or an empty object?
What is the best practice when returning data from functions. Is it better to return a Null or an empty object? And why should one do one over the other?
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extra qualification error in C++
...seValue(TDR type, const json_string& valueString);
};
The error come from the fact that JSONDeserializer::ParseValue is a qualified name (a name with a namespace qualification), and such a name is forbidden as a method name in a class.
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Adding information to an exception?
... ctor that takes >1 arguments (the type is something you cannot control from the place where you catch the exception).
– Václav Slavík
Mar 12 '12 at 16:09
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git: switch branch without detaching head
...xperimental Branch experimental set up to track remote branch experimental from origin by rebasing. Switched to a new branch 'experimental'
– Dustin
Aug 12 '13 at 16:56
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Do you need break in switch when return is used?
...eference: http://php.net/manual/en/function.return.php says:
If called from within a function, the return() statement immediately ends execution of the current function
)
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Count number of occurrences of a pattern in a file (even on same line)
...Search | cut -d ":" -f 4 | sort -n | uniq -c
Sample:
grep "SMTP connect from unknown" maillog | cut -d ":" -f 4 | sort -n | uniq -c
6 SMTP connect from unknown [188.190.118.90]
54 SMTP connect from unknown [62.193.131.114]
3 SMTP connect from unknown [91.222.51.253]
...