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C# static class constructor
...perform a particular action that needs to be performed once only. It
is called automatically before the first instance is created or any
static members are referenced
MSDN link
.
share
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im...
How can I use “:” as an AWK field separator?
...
If you want to do it programatically, you can use the FS variable:
echo "1: " | awk 'BEGIN { FS=":" } /1/ { print $1 }'
Note that if you change it in the main loop rather than the BEGIN loop, it takes affect for the next line read in, since the current l...
What is a Manifest in Scala and when do you need it?
Since Scala 2.7.2 there is something called Manifest which is a workaround for Java's type erasure. But how does Manifest work exactly and why / when do you need to use it?
...
Populating a ListView using an ArrayList?
... @ Amokrane Chentir: I think that the "setContentView" method must be called before "findViewById" or else no ListView will be found.
– Petru
Jun 26 '12 at 20:36
...
When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...etween types (such as int to float, or pointer to void*), and it can also call explicit conversion functions (or implicit ones). In many cases, explicitly stating static_cast isn't necessary, but it's important to note that the T(something) syntax is equivalent to (T)something and should be avoided ...
What is the difference between properties and attributes in HTML?
...attribute. Instead, it's the current value of the input. When the user manually changes the value of the input box, the value property will reflect this change. So if the user inputs "John" into the input box, then:
theInput.value // returns "John"
whereas:
theInput.getAttribute('value') // retu...
Multiline Comment Workarounds?
...ly, see for example this recent thread on r-help. The consensus answer usually is the one shown above: that given that the language has no direct support, you have to either
work with an editor that has region-to-comment commands, and most advanced R editors do
use the if (FALSE) constructs sugg...
C multi-line macro: do/while(0) vs scope block [duplicate]
...use of function-style macros uniform with the
use of ordinary functions in all contexts.
Consider the following code sketch
if (<condition>)
foo(a);
else
bar(a);
where 'foo' and 'bar' are ordinary functions. Now imagine that you'd
like to replace function 'foo' with a macro of the abov...
How to assign multiple classes to an HTML container? [closed]
.... Is there some order of precedence for that?
– EternallyCurious
Jan 1 '14 at 15:22
6
@JonathanHe...
Check whether a path is valid
...s must start with '/' or '\').
private bool IsValidPath(string path, bool allowRelativePaths = false)
{
bool isValid = true;
try
{
string fullPath = Path.GetFullPath(path);
if (allowRelativePaths)
{
isValid = Path.IsPathRooted(path);
}
...