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Difference between ref and out parameters in .NET [duplicate]
...d but passing it as a ref parameter it has to be set to something.
int x;
Foo(out x); // OK
int y;
Foo(ref y); // Error: y should be initialized before calling the method
Ref parameters are for data that might be modified, out parameters are for data that's an additional output for the function ...
How to use “/” (directory separator) in both Linux and Windows in Python?
...llapses redundant uplevel references... i.e., A/B and A/foo/../B and A/./B all become A/B. And if you are Windows, these all become A\B.
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History or log of commands executed in Git
...y I can keep track of commands I used in Git under Windows? I want to view all the commands that I have applied on my repository.
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location.host vs location.hostname and cross-browser compatibility?
...ink anatomy
--
In short (assuming a location of http://example.org:8888/foo/bar#bang):
hostname gives you example.org
host gives you example.org:8888
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...
Equal sized table cells to fill the entire width of the containing table
...cal-align: middle;
word-wrap: break-word;
}
<ul>
<li>foo<br>foo</li>
<li>barbarbarbarbar</li>
<li>baz</li>
</ul>
Note that for table-layout to work the table styled element must have a width set (100% in my example).
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How do you set up use HttpOnly cookies in PHP
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With PHP 8's named parameters, we'll finally be able to make the set_cookie call less verbose if we don't need to set the other parameters. For example set_cookie($name, $value, httponly: true).
– Sygmoral
Aug 30 at 15:36
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Undo scaffolding in Rails
...an destroy/undo it using
rails destroy scaffold MyFoo
That will delete all the files created by generate, but not any additional changes you may have made manually.
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Using C++ library in C code
...face layer in C++ that declares functions with extern "C":
extern "C" int foo(char *bar)
{
return realFoo(std::string(bar));
}
Then, you will call foo() from your C module, which will pass the call on to the realFoo() function which is implemented in C++.
If you need to expose a full C++ cla...
difference between throw and throw new Exception()
...w ex; throws the original exception but resets the stack trace, destroying all stack trace information until your catch block.
NEVER write throw ex;
throw new Exception(ex.Message); is even worse. It creates a brand new Exception instance, losing the original stack trace of the exception, as well...
How to enter quotes in a Java string?
...g ROM = "Java Programming";
ROM = "\"" + ROM + "\"";
Of course, this actually replaces the original ROM, since Java Strings are immutable.
If you are wanting to do something like turn the variable name into a String, you can't do that in Java, AFAIK.
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