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Effects of the extern keyword on C functions
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140
We have two files, foo.c and bar.c.
Here is foo.c
#include <stdio.h>
volatile unsigned ...
How to detect if a variable is an array
...efore, it might be a good idea to check if the object has a property named 0 instead, which can be done via one of these checks:
typeof obj[0] !== 'undefined' // false negative for `obj[0] = undefined`
obj.hasOwnProperty('0') // exclude array-likes with inherited entries
'0' in Object(obj) // inclu...
CommandError: You must set settings.ALLOWED_HOSTS if DEBUG is False
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answered Jul 21 '14 at 4:10
Kye RussellKye Russell
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Removing elements by class name?
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Lior CohenLior Cohen
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GetType() can lie?
...dFoo foo = new BadFoo();
Console.WriteLine("n1 and n2 are the same type: {0}",
Object.ReferenceEquals(n1.GetType(), foo.GetType()));
// output:
// n1 and n2 are the same type: True
so, yikes, you've successfully lied, right?
Well, yes and no... Consider that using this as an e...
Should accessing SharedPreferences be done off the UI Thread?
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answered Dec 6 '10 at 23:07
Brad FitzpatrickBrad Fitzpatrick
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jQuery find events handlers registered with an object
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edited Jan 10 '13 at 17:15
gnarf
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What is the meaning of prepended double colon “::”?
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505
This ensures that resolution occurs from the global namespace, instead of starting at the names...
How to properly document S4 class slots using Roxygen2?
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30
Updated answer for Roxygen2 5.0.1, current as of 6.0.1
For S4, the best practice now is documen...
problem with and :after with CSS in WebKit
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answered Aug 20 '10 at 18:33
David says reinstate MonicaDavid says reinstate Monica
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