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When should I really use noexcept?
...r every function declaration would greatly reduce programmer productivity (and frankly, would be a pain).
Well, then use it when it's obvious that the function will never throw.
When can I realistically expect to observe a performance improvement after using noexcept? [...] Personally, I care ...
Can a Windows batch file determine its own file name?
...st the filename without the extension.
Write %~n0%~x0 to get the filename and extension.
Also possible to write %~nx0 to get the filename and extension.
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Node: log in a file instead of the console
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Update 2013 - This was written around Node v0.2 and v0.4; There are much better utilites now around logging. I highly recommend Winston
Update Late 2013 - We still use winston, but now with a logger library to wrap the functionality around logging of custom objects and fo...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
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What you have is EXTRATERRESTRIAL ALIEN (U+1F47D) and BROKEN HEART (U+1F494) which
are not in the basic multilingual plane. They cannot be even represented in java as one char, "????????".length() == 4. They are definitely not null characters and one will see squares if you ...
Why does appending “” to a String save memory?
...owing:
data.substring(x, y) + ""
creates a new (smaller) String object, and throws away the reference to the String created by substring(), thus enabling garbage collection of this.
The important thing to realise is that substring() gives a window onto an existing String - or rather, the charac...
Copy object values in Visual Studio debug mode
...tudio debug mode it's possible to hover over variables to show their value and then right-click to "Copy", "Copy Expression" or "Copy Value".
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How to disable HTML button using JavaScript?
...attributes are defined as boolean, which means you can specify their value and leave everything else out. i.e. Instead of disabled="disabled", you include only the bold part. In HTML 4, you should include only the bold part as the full version is marked as a feature with limited support (although th...
How to compute the sum and average of elements in an array?
...he elements of an array as well as averaging them out. How would I do this and implement it with the code I currently have? The elements are supposed to be defined as I have it below.
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how to draw directed graphs using networkx in python?
... to map on to a graph. In the below, I want to use Arrow to go from A to D and probably have the edge colored too in (red or something).
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Enum Naming Convention - Plural
...read similar but not exactly what I want at C# naming convention for enum and matching property
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