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When is “Try” supposed to be used in C# method names?
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This is known as the TryParse pattern and has been documented by Microsoft. The official Exceptions and Performance MSDN page says:
Consider the TryParse pattern for members that may throw exceptions in common scenarios to avoid performance problems related t...
Combine Date and Time columns using python pandas
...etime64[ns]
Note: surprisingly (for me), this works fine with NaNs being converted to NaT, but it is worth worrying that the conversion (perhaps using the raise argument).
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log4j logging hierarchy order
... you will see how the log works in each level. i.e for WARN, (FATAL, ERROR and WARN) will be visible. For OFF, nothing will be visible.
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:: (double colon) operator in Java 8
I was exploring the Java 8 source and found this particular part of code very surprising:
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Getting View's coordinates relative to the root layout
Can I get a View's x and y position relative to the root layout of my Activity in Android?
10 Answers
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Why can templates only be implemented in the header file?
Quote from The C++ standard library: a tutorial and handbook :
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What is the difference between .text, .value, and .value2?
... I would probably use Format to control how the number gets converted to a string: var = Format(Range("a1").Value2, "#")
– Charles Williams
Jan 22 '15 at 13:16
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Deleting elements from std::set while iterating
I need to go through a set and remove elements that meet a predefined criteria.
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Do scala constructor parameters default to private val?
...s there. No field is generated. Otherwise private val bar field is created and value of bar parameter is assigned to it. No getter is created.
private val bar: Int
Such declaration of parameter will create private val bar field with private getter. This behavior is the same as above no matter if t...
Replace selector images programmatically
... resource set to a selector. How do I programmatically access the selector and change the images of the highlighted and non-highlighted state?
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