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How do I run a Python program?
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Sometimes if python ver. 3 has been installed you may have to type "python3" note that the ".exe" extension is not always required. Also it doesn't make any difference whether Windows is set up to use file extensions or not, that...
How can I run dos2unix on an entire directory? [closed]
...type f -print0 | xargs -0 -n 1 -P 4 dos2unix
This will pass 1 file at a time, and use 4 processors.
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
...ous, this is bad news. Java's type system actually allows this at compile time. The JVM will "helpfully" throw an ArrayStoreException at runtime. Scala's type system prevents this problem because the type parameter on the Array class is invariant (declaration is [A] rather than [+A]).
Note that ...
C# difference between == and Equals()
...ison is object. It looks like operator overloads are determined at compile time and at compile time all it knows is that the left hand side is an object.
– MikeKulls
Jul 15 '12 at 22:53
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What is the difference between null and undefined in JavaScript?
...ll and leave undefined the value for things you forgot to set. At the same time, I really encourage you to always set every variable. JavaScript has a scope chain different than that of C-style languages, easily confusing even veteran programmers, and setting variables to null is the best way to pre...
Python - doctest vs. unittest [closed]
...y? I like keeping docstrings somewhat shorter and more to the point. Sometimes test cases help clarify a docstring. Most of the time, the application's test cases are too long for a docstring.
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MySQL error code: 1175 during UPDATE in MySQL Workbench
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i only came to say that i searched for this post like 20 times in last 6 months as i had always this option to false for 11 years, but now i'm working on a company with this set to true on develop and production. There's many reasons to set it to 0 by default, for example when you...
When to use PNG or JPG in iPhone development?
... I've yet to see any data on JPEG vs PNG vs iPNG decode performance. Sometimes the more-compressed format is better due to reduced I/O required; I'm not sure how fast the iPhone's flash drive is. And I definitely wouldn't say PNG decompression requires "very little" energy; the Other.artwork file ...
Google Maps API v3: Can I setZoom after fitBounds?
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I have come to this page multiple times to get the answer, and while all the existing answers were super helpful, they did not solve my problem exactly.
google.maps.event.addListenerOnce(googleMap, 'zoom_changed', function() {
var oldZoom = googleMap.ge...
Where are static methods and static variables stored in Java?
...gh some exception, finalize() won't be invoked on the same object a second time.
A final note: how code, runtime data etc. are stored depends on the JVM which is used, i.e. HotSpot might do it differently than JRockit and this might even differ between versions of the same JVM. The above is based o...