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How do you check if a variable is an array in JavaScript? [duplicate]

...t method above. Also, I ran some test: http://jsperf.com/instanceof-array-vs-array-isarray/35 So have some fun and check it out. Note: @EscapeNetscape has created another test as jsperf.com is down. http://jsben.ch/#/QgYAV I wanted to make sure the original link stay for whenever jsperf comes back...
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Enabling WiFi on Android Emulator

...r emulation purposes (like, what would your application do if it was at 4G vs 3G) and can be changed through settings. Even if WiFi is shown as off or not connected, I am still able to open Google because my computer is connected to WiFi. So although you can view/download websites, you cannot emulat...
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How to sort two lists (which reference each other) in the exact same way

...ndex); map(l2.__getitem__, index) 100 loops, best of 3: 8.04 ms per loop (vs 9.17 ms, 9.07 ms for senderle's timits) – Quantum7 Aug 12 '13 at 21:35 ...
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What is a classpath and how do I set it?

... Another well explained blog on What is PATH and CLASSPATH in Java - Path vs ClassPath – KNU Nov 20 '14 at 8:50 In py...
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What is the optimal length for an email address in a database?

...if you calculate the number of cars driving to RED such that you have time vs. number of cars driving to red in the axes. – Léo Léopold Hertz 준영 Jul 29 '09 at 11:01 ...
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What are the differences between numpy arrays and matrices? Which one should I use?

...mensional). There is a synopsis of the differences between NumPy arrays vs NumPy matrixes here. share | improve this answer | follow | ...
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Why Would I Ever Need to Use C# Nested Classes [duplicate]

... Mark is referring to this page: msdn.microsoft.com/en-us/library/tdz1bea9(VS.71).aspx – Noldorin Jul 4 '09 at 23:49 4 ...
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Difference between java.exe and javaw.exe

...not wait and return to command prompt immediately. Try it with notepad.exe vs ping 8.8.8.8 – Codeguard Dec 9 '19 at 17:54 ...
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What's the difference between a word and byte?

...ome processor might have different word sizes for different tasks (integer vs. floating point processing for example). The word size is what the majority of operations work with. There are also a few processors who have a different pointer size: for example, the 8086 is a 16-bit processor which mea...
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When is finally run if you throw an exception from the catch block?

...is unhandled, the finally never executes. I tested this code sample in VS2010 w/ C# 4.0 static void Main() { Console.WriteLine("Example 1: re-throw inside of another try block:"); try { Console.WriteLine("--outer try"); try { ...