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Ignore python multiple return value
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One common convention is to use a "_" as a variable name for the elements of the tuple you wish to ignore. For instance:
def f():
return 1, 2, 3
_, _, x = f()
share...
Correct way to define C++ namespace methods in .cpp file
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Version 2 is unclear and not easy to understand because you don't know which namespace MyClass belongs to and it's just illogical (class function not in the same namespace?)
Version 1 is right because it shows that in the namespace, y...
How do you query for “is not null” in Mongo?
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This will return all documents with a key called "IMAGE URL", but they may still have a null value.
db.mycollection.find({"IMAGE URL":{$exists:true}});
This will return all documents with both a key called "IMAGE URL" and a no...
android asynctask sending callbacks to ui [duplicate]
I have the following asynctask class which is not inside the activity. In the activity I'm initializing the asynctask, and I want the asynctask to report callbacks back to my activity.
Is it possible? Or does the asynctask must be in the same class file as the activity?
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List or IList [closed]
Can anyone explain to me why I would want to use IList over List in C#?
18 Answers
18
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Using Custom Domains With IIS Express
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This is what worked for me (Updated for VS 2013, see revision history for 2010, for VS 2015 see this: https://stackoverflow.com/a/32744234/218971):
Right-click your Web Application Project ▶ Properties ▶ Web, then configu...
How do I use the conditional operator (? :) in Ruby?
How is the conditional operator ( ? : ) used in Ruby?
7 Answers
7
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How to dismiss keyboard for UITextView with return key?
In IB's library, the introduction tells us that when the return key is pressed, the keyboard for UITextView will disappear. But actually the return key can only act as '\n'.
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Hidden features of Perl?
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The flip-flop operator is useful for skipping the first iteration when looping through the records (usually lines) returned by a file handle, without using a flag variable:
while(<$fh>)
{
next if 1..1; # skip first record
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}
Run per...
How do I return multiple values from a function? [closed]
The canonical way to return multiple values in languages that support it is often tupling .
14 Answers
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