大约有 41,500 项符合查询结果(耗时:0.0632秒) [XML]
How to wait for all goroutines to finish without using time.Sleep?
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answered Aug 13 '13 at 11:25
zzzzzzzz
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Check whether a string matches a regex in JS
...,})$/.test('abc12')); // true
console.log(/^([a-z0-9]{5,})$/.test('abc123')); // true
...and you could remove the () from your regexp since you've no need for a capture.
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How to determine if a decimal/double is an integer?
...ecimal point.
public static void Main (string[] args)
{
decimal d = 3.1M;
Console.WriteLine((d % 1) == 0);
d = 3.0M;
Console.WriteLine((d % 1) == 0);
}
Output:
False
True
Update: As @Adrian Lopez mentioned below, comparison with a small value epsilon will discard floating-poi...
Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?
... ab.put(i%50, sum);
bb.put(i%50, sum);
}
long t3 = System.nanoTime();
System.out.println("dot(): " + (t2 - t1)/10000000 + " ns");
System.out.println("dotc(): " + (t3 - t2)/10000000 + " ns");
}
}
and Dot.h:
float ac[50], bc[50];
inline float dotc()...
Database development mistakes made by application developers [closed]
...database design?
Are foreign keys really necessary in a database design?
3. Using natural rather than surrogate (technical) primary keys
Natural keys are keys based on externally meaningful data that is (ostensibly) unique. Common examples are product codes, two-letter state codes (US), social s...
How to measure time taken by a function to execute
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1863
Using performance.now():
var t0 = performance.now()
doSomething() // <---- The function ...
C++ IDE for Macs [closed]
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edited Oct 13 '16 at 20:34
Lidakis Emmanuel
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answer...
Get last record in a queryset
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edited Feb 3 '10 at 11:29
Dominic Rodger
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any tool for java object to object mapping? [closed]
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skaffmanskaffman
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How do I properly compare strings in C?
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MysticialMysticial
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10
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