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Test if string is a guid without throwing exceptions?
...herwise false</returns>
public static Boolean TryStrToGuid(String s, out Guid value)
{
//ClsidFromString returns the empty guid for null strings
if ((s == null) || (s == ""))
{
value = Guid.Empty;
return false;
}
int hresult = PInvoke.ObjBase.CL...
Replace values in list using Python [duplicate]
...id_before = id(data)
data[:] = [x if x % 2 else None for x in data]
data
# Out: [None, 1, None, 3, None, 5, None, 7, None, 9, None]
id_before == id(data) # check if list is still the same
# Out: True
If you have multiple names pointing to the original list,
for example you wrote data2=data before...
What is the difference between quiet NaN and signaling NaN?
I have read about floating-point and I understand that NaN could result from operations. But I can't understand what these are concepts exactly. What is the difference between them?
...
Is ServiceLocator an anti-pattern?
Recently I've read Mark Seemann's article about Service Locator anti-pattern.
7 Answers
...
Why is Swift compile time so slow?
...
Well, it turned out that Rob Napier was right. It was one single file (actually one method) that was causing the compiler to go berzek.
Now don't get me wrong. Swift does recompile all your files each time, but the great thing now, is that ...
How to gracefully handle the SIGKILL signal in Java
...verride
public void run()
{
System.out.println("Shutdown hook ran!");
}
});
while (true)
{
Thread.sleep(1000);
}
}
}
There isn't any way to really gracefully handle a kill -9 in any program.
In...
Eclipse - Unable to install breakpoint due to missing line number attributes
...va" destdir="./bin" debug="true">
Still, same message.
I didn't find out what caused this message and why it wouldn't go away. Though it seemed to have something to do with the running Tomcat debug session: when disconnected, recompiling solves the issue. But on connecting the debugger to Tomc...
How can I generate a list or array of sequential integers in Java?
...uousSet.create(Range.closedOpen(0, 10), DiscreteDomain.integers());
System.out.println(integerList);
This doesn't create a List<Integer>, but ContiguousSet offers much the same functionality, in particular implementing Iterable<Integer> which allows foreach implementation in the same w...
What are the differences between Chosen and Select2?
...
Nothing that pulls data via AJAX will work without Javascript. Select2 works fine with pre-populated values and doesn't have to use AJAX.
– zachzurn
Jul 26 '13 at 2:35
...
jQuery Validate - require at least one field in a group to be filled
...e_from_group", function(value, element, options) {
...// Nathan's code without any changes
}, jQuery.format("Please fill out at least {0} of these fields."));
// "filone" is the class we will use for the input elements at this example
jQuery.validator.addClassRules("fillone", {
require_from_gro...