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Performance of FOR vs FOREACH in PHP
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@Col. Shrapnel I agree 100%. Readability and maintainability trump performance by a large margin in this particular case... I agree about picking a standard and sticking with it, but base that standard upon other --more important-- factors...
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val-mutable versus var-immutable in Scala
... because you need to store the resulting collection somewhere. If you only read from immutable collections, then use vals.
In general, make sure that you don't confuse references and objects. vals are immutable references (constant pointers in C). That is, when you use val x = new MutableFoo(), you...
Download File to server from URL
...($newf) {
while(!feof($file)) {
fwrite($newf, fread($file, 1024 * 8), 1024 * 8);
}
}
}
if ($file) {
fclose($file);
}
if ($newf) {
fclose($newf);
}
}
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Alternate output format for psql
... query results to wrap multiple times. Consequently, the output is hard to read.
7 Answers
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Download file of any type in Asp.Net MVC using FileResult?
...ype:
public FileResult Download()
{
byte[] fileBytes = System.IO.File.ReadAllBytes(@"c:\folder\myfile.ext");
string fileName = "myfile.ext";
return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, fileName);
}
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What's this =! operator? [duplicate]
...rounding binary operators with spaces, just to make it clear to the humans reading the code what the compiler is thinking.
I'm a bit surprised nobody else mentioned this, but then again I may be the only SO user to have ever touched a C compiler that old.
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How do I get the first n characters of a string without checking the size or going out of bounds?
...);
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think harder to understand the code. IMO, the code's meaning is more obvious in the if / else version. Fo...
Is there an exponent operator in C#?
...n including exponents. The Math.Pow() method makes equations quite hard to read IMO.
Our solution was to create a special DoubleX class where we override the ^-operator (see below)
This works fairly well as long as you declare at least one of the variables as DoubleX:
DoubleX a = 2;
DoubleX b = 3;
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Changing the interval of SetInterval while it's running
... Being nitpicky here, but I gotta say, that code is pretty hard to read. If you're gonna use next-line braces, at least have the decency to either use 4-8-space indentation or never go beyond 2 indents. IMO this version is much easier to read. Also take note of the renaming of t to tick, whi...
What are the use cases for selecting CHAR over VARCHAR in SQL?
...VARCHAR(6), VARCHAR(100), or VARCHAR(MAX) uses the same amount of storage. Read more about the differences when using VARCHAR(MAX). You declare a maximum size in VARCHAR to limit how much is stored.
In the comments AlwaysLearning pointed out that the Microsoft Transact-SQL docs seem to say the oppos...