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Why is NaN not equal to NaN? [duplicate]

...n this question pops up in searches. NaN is designed to propagate through all calculations, infecting them like a virus, so if somewhere in your deep, complex calculations you hit upon a NaN, you don't bubble out a seemingly sensible answer. Otherwise by identity NaN/NaN should equal 1, along with ...
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Maven build failed: “Unable to locate the Javac Compiler in: jre or jdk issue”

...s: Add and set the JRE in menu Window → Preferences... → Java → Installed JREs: JRE type: Standard VM JRE Name: jdk1.6.0_18 JRE home directory: C:\Program Files (x86)\Java\jdk1.6.0_18 If this is not the case, it's possible that the brackets and spaces in the JAVA_HOME path are causing issu...
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How to get datetime in JavaScript?

... Semantically, you're probably looking for the one-liner new Date().toLocaleString() which formats the date in the locale of the user. If you're really looking for a specific way to format dates, I recommend the moment.js library....
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Setting design time DataContext on a Window is giving a compiler error?

...set the design time d:DataContext below, which I can successfully do for all my various UserControls, but it gives me this error when I try to do it on the window... ...
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FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)

...It's a FragmentPagerAdapter for non-support fragments. Android Studio Installation Please add follow Gradle dependencies dependencies { compile 'com.android.support:support-v13:+' } share | ...
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How does std::forward work? [duplicate]

...d as possible and explain when std::forward would be incorrect if it was allowed to use template argument deduction. 3 An...
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Why does “_” (underscore) match “-” (hyphen)?

...you are in a pattern context. e.g. inside a LIKE statement. When replacing all _ with an - : UPDATE sys_file set identifier = REPLACE(identifier, '_', '-') WHERE identifier LIKE '%\_%';. Notice the escaping inside LIKE and no escaping inside REPLACE. (I find it strange though that you are not in a p...
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What is the Java equivalent of PHP var_dump?

...for free. It is done with convention rather than language constructs. In all data transfer classes (and maybe even in all classes you write...), you should implement a sensible toString method. So here you need to override toString() in your Person class and return the desired state. There are u...
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Why can't I define a default constructor for a struct in .NET?

...type a default constructor is created (by the compiler?) which initialized all members to zero (or null ). 10 Answers ...
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Unix - create path of folders and file

...her/path/here && touch $_/cpredthing.txt. The $_ expands to essentially the "last argument in the last command executed". – Sgnl Apr 19 '16 at 1:37 4 ...