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Difference between no-cache and must-revalidate
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With Jeffrey Fox's interpretation about no-cache, i've tested under chrome 52.0.2743.116 m, the result shows that no-cache has the same behavior as must-revalidate, they all will NOT use local cache when server is unreachable, and, they all will use cache while tap browser's Back...
Capitalize first letter. MySQL
... this doesn't lower all other letters. Try SELECT CONCAT(UCASE(MID('TEST',1,1)),MID('TEST',2));
– vladkras
Apr 27 '18 at 10:07
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Difference between path.normalize and path.resolve in Node.js
...bsolute path. Example (my current working directory was /Users/mtilley/src/testing):
> path.normalize('../../src/../src/node')
'../../src/node'
> path.resolve('../../src/../src/node')
'/Users/mtilley/src/node'
In other words, path.normalize is "What is the shortest path I can take that will...
Performance differences between debug and release builds
...T optimizer is pretty reliable code, mostly because it has been put to the test millions of times. It is extremely rare to have problems in the Release build version of your program. It does happen however. Both the x64 and the x86 jitters have had problems with structs. The x86 jitter has troub...
How to read the content of a file to a string in C?
...e more tricky, and unfortunately I don't have a compiler in front of me to test, but the functionality is provided by CreateFileMapping() and MapViewOfFile().
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String concatenation in Ruby
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The + operator is the normal concatenation choice, and is probably the fastest way to concatenate strings.
The difference between + and << is that << changes the object on its left hand side, and + doesn't.
irb(main):001:0> s = 'a'
=> "a"
irb(main):002:0> s + 'b'
=> "ab"
i...
Are string.Equals() and == operator really same? [duplicate]
...unter, the == operator uses one or the other (or both), and generally only tests for ReferenceEquals when handling reference types (but the string Class is an instance where C# already knows how to test for value equality).
Equals compares values. (Even though two separate int variables don't exis...
What is the best way to get all the divisors of a number?
... Greg' solution to generate the divisor.
We sort them, and return them.
I tested it and it seem to be a bit faster than the previous version. I tested it as part of a bigger program, so I can't really say how much is it faster though.
Pietro Speroni (pietrosperoni dot it)
from math import sqrt
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Difference between \A \z and ^ $ in Ruby regular expressions
...of Regex treats \A as a literal 'A' (ref). So watch yourself out there and test.
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What XML parser should I use in C++? [closed]
...on of TinyXML: TinyXML-2 uses a similar API to TinyXML-1 and the same rich test cases. But the implementation of the parser is completely re-written to make it more appropriate for use in a game. It uses less memory, is faster, and uses far few memory allocations.
– johnbakers
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