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Reference: What is variable scope, which variables are accessible from where and what are “undefined

... | edited Mar 1 '18 at 6:40 answered Jun 6 '13 at 10:20 dec...
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JavaScript null check

... 107 An “undefined variable” is different from the value undefined. An undefined variable: var...
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IOCTL Linux device driver [closed]

... device-specific system call. There are only a few system calls in Linux (300-400), which are not enough to express all the unique functions devices may have. So a driver can define an ioctl which allows a userspace application to send it orders. However, ioctls are not very flexible and tend to get...
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Google Gson - deserialize list object? (generic type)

... | edited Mar 20 '18 at 12:20 Daniel Pryden 52.7k1212 gold badges8787 silver badges128128 bronze badges ...
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What is the purpose of Serialization in Java?

...g: Really just an application of the above, but sometimes an object takes 10 minutes to build, but would only take 10 seconds to de-serialize. So, rather than hold onto the giant object in memory, just cache it out to a file via serialization, and read it in later when it's needed. Cross JVM Synchr...
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How to force Chrome browser to reload .css file while debugging in Visual Studio?

I'm currently editing a .css file inside of Visual Studio 2012 (in debug mode). I'm using Chrome as my browser. When I make changes to my application's .css file inside of Visual Studio and save, refreshing the page will not load with the updated change in my .css file. I think the .css file is stil...
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How to stop EditText from gaining focus at Activity startup in Android

...="true" android:focusableInTouchMode="true" android:layout_width="0px" android:layout_height="0px"/> <!-- :nextFocusUp and :nextFocusLeft have been set to the id of this component to prevent the dummy from receiving focus again --> <AutoCompleteTextView android:id="@+id/au...
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Entity Framework vs LINQ to SQL

Now that .NET v3.5 SP1 has been released (along with VS2008 SP1), we now have access to the .NET entity framework. 17 Answe...
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Why do I need to override the equals and hashCode methods in Java?

... result = prime * result + ((importantField == null) ? 0 : importantField.hashCode()); return result; } @Override public boolean equals(final Object obj) { if (this == obj) return true; if (obj == null) return false; ...
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When are C++ macros beneficial? [closed]

... | edited Aug 13 '09 at 20:10 community wiki ...