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Why do assignment statements return a value?
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A common case where this property of the assignment operator is used is reading lines from a file...
string line;
while ((line = streamReader.ReadLine()) != null)
// ...
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How to generate an entity-relationship (ER) diagram using Oracle SQL Developer
...w the selection list. Select the checkbox next to HR, and click Next.
Read more...
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Difference between os.getenv and os.environ.get
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See this related thread. Basically, os.environ is found on import, and os.getenv is a wrapper to os.environ.get, at least in CPython.
EDIT: To respond to a comment, in CPython, os.getenv is basically a shortcut to os.environ.get ; since os.env...
Display string as html in asp.net mvc view
... Yeah this answer is much better, I initially used Html.Raw, but when i read this answer, I switched immediately
– Pratyush Dhanuka
Aug 20 '18 at 11:29
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What does the tilde before a function name mean in C#?
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They're both correct, depending on which C# spec you read. The most recent MS one (unified C# 3.0) refers to them as destructors (e.g. section 10.13) but the ECMA spec refers to them as finalizers.
– Jon Skeet
Oct 9 '08 at 19:10
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What are forward declarations in C++?
..., float b), but accidentally forgot to write it, but the linker found an already existing int add(int a, int b) and thought that was the right one and used that instead. Your code would compile, but wouldn't be doing what you expected.
So, just to keep things explicit and avoid the guessing etc, th...
Java 8 stream reverse order
...toring the elements.
This first way stores the elements into an array and reads them out to a stream in reverse order. Note that since we don't know the runtime type of the stream elements, we can't type the array properly, requiring an unchecked cast.
@SuppressWarnings("unchecked")
static <T&g...
Convert HTML + CSS to PDF [closed]
...igabyte; and
max_execution_time = 600; # yes, 10 minutes.
Now the astute reader may have noticed that my HTML file is smaller than 100k. The only reason I can guess as to why I hit this problem is that html2pdf does a conversion into xhtml as part of the process. Perhaps that took me over (altho...
Why catch and rethrow an exception in C#?
...ed the case, though a comment might equally suffice. Not guessing when you read code is a good thing.
– annakata
May 19 '09 at 8:36
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How can I output UTF-8 from Perl?
...all over code.
To synthesize and complete for other cases, like write and read files in utf8 and also works with LoadFile of an YAML file in utf8
use utf8;
use open ':encoding(utf8)';
binmode(STDOUT, ":utf8");
open(FH, ">test.txt");
print FH "something éá";
use YAML qw(LoadFile Dump);
my $...