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JavaScript get window X/Y position for scroll
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answered Aug 12 '10 at 5:09
thomasrutterthomasrutter
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Why is using “for…in” for array iteration a bad idea?
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1581
The reason is that one construct:
var a = []; // Create a new empty array.
a[5] = 5; /...
How to get the list of all printers in computer
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edited Aug 22 '14 at 14:56
Arvo Bowen
3,46066 gold badges3636 silver badges7272 bronze badges
answered...
How to scale down a range of numbers with a known min and max value
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528
Let's say you want to scale a range [min,max] to [a,b]. You're looking for a (continuous) fun...
How to check BLAS/LAPACK linkage in NumPy and SciPy?
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5 Answers
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'float' vs. 'double' precision
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Floating point numbers in C use IEEE 754 encoding.
This type of encoding uses a sign, a significand, and an exponent.
Because of this encoding, many numbers will have small changes to allow them to be stored.
Also, the number of significant digits can change s...
Difference Between Invoke and DynamicInvoke
...813ms
Code:
Func<int,int> twice = x => x * 2;
const int LOOP = 5000000; // 5M
var watch = Stopwatch.StartNew();
for (int i = 0; i < LOOP; i++)
{
twice.Invoke(3);
}
watch.Stop();
Console.WriteLine("Invoke: {0}ms", watch.ElapsedMilliseconds);
watch = Stopwatch.StartNew();
for (int i...
Java 8: performance of Streams vs Collections
... Mean error Units
StreamVsVanilla.stream avgt 10 17.588 0.230 ns/op
StreamVsVanilla.vanilla avgt 10 10.796 0.063 ns/op
Just as I expected stream implementation is fairly slower. JIT is able to inline all lambda stuff but doesn't produce a...
Swift equivalent for MIN and MAX macros
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5 Answers
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NPM - How to fix “No readme data”
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225
Simply adding a README.md file will not fix it, you should write something inside it; at least t...