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Why C# implements methods as non-virtual by default?
... the effort needed for good overall design (good content, clear use cases, testing, documentation), designing for inheritance really isn't too bad. And if you're not publishing, virtual-by-default is less time-consuming, and you can always fix the small portion of cases where it's problematic.
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Check whether an array is a subset of another
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If you are unit-testing you can also utilize the CollectionAssert.IsSubsetOf method :
CollectionAssert.IsSubsetOf(subset, superset);
In the above case this would mean:
CollectionAssert.IsSubsetOf(t2, t1);
...
How to initialize HashSet values by construction?
...rected for Java diamond notation as you mentioned, but didn't have time to test it. If anyone can doublecheck that would be awesome. Main concern is the hashset to set assignment, the HashSet constructor may need an explicit generic type.
– Gennadiy
Jul 25 '17 ...
How do you change the size of figures drawn with matplotlib?
...fig = matplotlib.pyplot.gcf()
fig.set_size_inches(18.5, 10.5)
fig.savefig('test2png.png', dpi=100)
To propagate the size change to an existing gui window add forward=True
fig.set_size_inches(18.5, 10.5, forward=True)
sha...
Changing one character in a string
... applications in C. But you have to care about it all the time and need to test it explicitly to avoid trouble. Everything is machine-oriented. I worked with PHP before learning Python, and that language is a total mess. Regarding your note on fast CPUs I'm totally with you. But a part of that probl...
How can I get a JavaScript stack trace when I throw an exception?
... currentBrowser = {
firefox: /firefox/gi.test(sUA),
webkit: /webkit/gi.test(sUA),
},
aLines = Console.stackTrace().split("\n"),
aCurrentLine,
iCurrIndex = ((currentBrowser.webkit) ? ...
How to output only captured groups with sed?
...)[^0-9]*/\1 /gp'
123 456
That works for any count of digit runs:
$ str='Test Num(s) 123 456 7899900 contained as0018166df in text'
$ echo "$str" | sed -En 's/[^0-9]*([0-9]{1,})[^0-9]*/\1 /gp'
123 456 7899900 0018166
Which is very similar to the grep command:
$ str='Test Num(s) 123 456 7899900 ...
what is the difference between ?:, ?! and ?= in regex?
...etween lookahead and non-capturing groups it is all about if you want just test the existence or test and save the match. Capturing group are expensive so use it judiciously.
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improve this an...
addEventListener vs onclick
...ne, meaning right in the HTML code. You've probably seen this:
<a id="testing" href="#" onclick="alert('did stuff inline');">Click me</a>
Most experienced developers shun this method, but it does get the job done; it is simple and direct. You may not use closures or anonymous functio...
Multi-key dictionary in c#? [duplicate]
...good. I'm not very sure about OverriddenHashCodeMethod's job. Will have to test.
– nawfal
May 27 '14 at 9:09
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