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What's the _ underscore representative of in Swift References?
... have this foo() method defined in class Bar:
class Bar{
func foo(s1: String, s2: String) -> String {
return s1 + s2;
}
}
When you call foo(), it is called like bar.foo("Hello", s2: "World").
But, you can override this behavior by using _ in front of s2 where it's declared.
f...
Python - Get path of root project structure
... packages; this is done to prevent directories with a common name, such as string, from unintentionally hiding valid modules that occur later on the module search path. In the simplest case, __init__.py can just be an empty file, but it can also execute initialization code for the package or set the...
How to adjust layout when soft keyboard appears
...
+1 That simple? Any extra conditions? What was the image you posted about?
– Roy Lee
May 7 '13 at 4:17
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How to get parameters from a URL string?
I have a HTML form field $_POST["url"] having some URL strings as the value.
Example values are:
13 Answers
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Is returning null bad design? [closed]
...ing null is insane when it's used as a substitute for empty containers (or strings). That's not the common case though.
– MSalters
Aug 14 '09 at 8:17
2
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LINQ Single vs First
...the first number from the list or 0 if the list is empty. If it is list<string>, it will return the first string from the list or null if the list is empty.
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CSS: Set a background color which is 50% of the width of the window
... pink;
}
Example: http://jsfiddle.net/PLfLW/1704/
The solution uses an extra fixed div that fills half the screen. Since it's fixed, it will remain in position even when your users scroll. You may have to fiddle with some z-indexes later, to make sure your other elements are above the background...
Iterate through every file in one directory
...puts path
end
The benefit is that you get a Pathname object instead of a string, that you can do useful stuff with and traverse further.
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Function to convert column number to letter?
... letter for a given column number.
Function Col_Letter(lngCol As Long) As String
Dim vArr
vArr = Split(Cells(1, lngCol).Address(True, False), "$")
Col_Letter = vArr(0)
End Function
testing code for column 100
Sub Test()
MsgBox Col_Letter(100)
End Sub
...
How to set custom header in Volley Request
...
It looks like you override public Map<String, String> getHeaders(), defined in Request, to return your desired HTTP headers.
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