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Performance of static methods vs instance methods
...come up with normal use than those which come up with strange use.
Number 2. Makes no difference. There's a certain amount of per-class cost for each member it terms of both how much metadata there is, how much code there is in the actual DLL or EXE file, and how much jitted code there'll be. This ...
How to convert CharSequence to String?
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342
By invoking its toString() method.
Returns a string containing the characters in this sequen...
The function to show current file's full path in mini buffer
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12 Answers
12
Active
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How do detect Android Tablets in general. Useragent?
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112
The issue is that the Android User-Agent is a general User-Agent and there is no difference b...
Create batches in linq
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edited Nov 13 '19 at 22:23
Sergey Nudnov
88066 silver badges1818 bronze badges
answered Dec 5 '12 a...
Which, if any, C++ compilers do tail-recursion optimization?
...);
int foo(int n, int acc) {
return (n == 0) ? acc : bar(n - 1, acc + 2);
}
int bar(int n, int acc) {
return (n == 0) ? acc : foo(n - 1, acc + 1);
}
Letting the compiler do the optimisation is straightforward: Just switch on optimisation for speed:
For MSVC, use /O2 or /Ox.
For GCC, Cl...
Why switch is faster than if
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DanielDaniel
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How do I convert a float number to a whole number in JavaScript?
...t; 0 // -5 -5 -5
value >>> 0 // 4294967291 4294967291 4294967291
value - value % 1 // -5 -5 -5
Positive - Larger numbers
// x = Number.MAX_SAFE_INTEGER/10 // =900719925474099.1
// value=x x=900719925474099 x=90071992...
launch sms application with an intent
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20 Answers
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Copy files from one directory into an existing directory
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What you want is:
cp -R t1/. t2/
The dot at the end tells it to copy the contents of the current directory, not the directory itself. This method also includes hidden files and folders.
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