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Is DateTime.Now the best way to measure a function's performance?
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No, it's not. Use the Stopwatch (in System.Diagnostics)
Stopwatch sw = Stopwatch.StartNew();
PerformWork();
sw.Stop();
Console.WriteLine("Time taken: {0}ms", sw.Elapsed.TotalMilliseconds);
Stopwatch automatically checks for t...
Check if a number has a decimal place/is a whole number
... for an easy way in JavaScript to check if a number has a decimal place in it (in order to determine if it is an integer). For instance,
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_=> what does this underscore mean in Lambda expressions?
...follow
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edited May 6 '10 at 4:11
answered May 6 '10 at 4:04
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How to create a fixed-size array of objects
In Swift, I am trying to create an array of 64 SKSpriteNode. I want first to initialize it empty, then I would put Sprites in the first 16 cells, and the last 16 cells (simulating an chess game).
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JavaScript by reference vs. by value [duplicate]
...asses something by value and when by reference and when modifying a passed item affects the value outside a function and when not. I'm also interested in when assigning to another variable is by reference vs. by value and whether that follows any different rules than passing as a function parameter...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
... // these are the same
b = new Array(), // a and b are arrays with length 0
c = ['foo', 'bar'], // these are the same
d = new Array('foo', 'bar'), // c and d are arrays with 2 strings
// these are different:
e = [3] // e.length == 1, e[0] == 3
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decimal vs double! - Which one should I use and when? [duplicate]
...hould a use a double and when should I use a decimal type?
Which type is suitable for money computations? (ie. greater than $100 million)
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Get local IP address
....ToString();
}
}
throw new Exception("No network adapters with an IPv4 address in the system!");
}
To check if you're connected or not:
System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable();
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Why the switch statement cannot be applied on strings?
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The reason why has to do with the type system. C/C++ doesn't really support strings as a type. It does support the idea of a constant char array but it doesn't really fully understand the notion of a string.
In order to generate the code for a sw...
What reason is there to use null instead of undefined in JavaScript?
I've been writing JavaScript for quite a long time now, and I have never had a reason to use null . It seems that undefined is always preferable and serves the same purpose programmatically. What are some practical reasons to use null instead of undefined ?
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