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In C#, why is String a reference type that behaves like a value type?
... to this situation where we have a type with value sematics not inheriting from System.ValueType. Thanks Ben.)
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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...
Get Visual Studio to run a T4 Template on every build
...xtension=vb
if not (%2)==() set extension=%2
echo executing transform_all from %wdir%
:: create a list of all the T4 templates in the working dir
dir %wdir%\*.tt /b /s > t4list.txt
echo the following T4 templates will be transformed:
type t4list.txt
:: transform all the templates
for /f %%d in...
How to create a CPU spike with a bash command
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Reading from /dev/zero and writing to /dev/null is not a very good load generator - you have to run a lot of them to generate significant load. Better to do something like dd if=/dev/urandom | bzip2 -9 >> /dev/null. /dev/urand...
String replacement in java, similar to a velocity template
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Use StringSubstitutor from Apache Commons Text.
https://commons.apache.org/proper/commons-text/
It will do it for you (and its open source...)
Map<String, String> valuesMap = new HashMap<String, String>();
valuesMap.put("animal", ...
How to set commands output as a variable in a batch file
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+Santiago Villafuerte: yes, if you're running from a batch file, but if you want to run it from the command line yourself (for example: to test it before putting it in the batch file) then you use a single %.
– Brent Rittenhouse
Oct...
What is the difference between “px”, “dip”, “dp” and “sp”?
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From the Android Developer Documentation:
px
Pixels - corresponds to actual pixels on the screen.
in
Inches - based on the physical size of the screen.
1 Inch = 2.54 centimeters
mm
Millimeters - based on ...
Android TextView Justify Text
... to seal.io/2010/12/only-way-how-to-align-text-in-block-in.html. (Stole from stackoverflow.com/questions/5976627/…)
– jcaruso
May 17 '13 at 21:57
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What does (x ^ 0x1) != 0 mean?
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@supercat: When a conversion from floating-point to integer is called for, the conversion is implicit (doesn't require cast syntax). But no conversion is triggered by bitwise operators, they simply fail for floating-point types.
– ...
What are the disadvantages to declaring Scala case classes?
...'t necessarily in the contract. At least, you could explicitly exclude it from the contract when you first write the class.
– herman
Oct 6 '13 at 9:13
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