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Difference between Static and final?
...od can call only other static methods and can not call a non-static method from it unless it has/creates an instance of the class.
A static method can be accessed directly by the class name and doesn’t need any object.
Syntax: Class.methodName()
A static method cannot refer to this or super ke...
How to get the directory of the currently running file?
...2017'? It seems time machine has been invented and we have members posting from the future. It is nice to know a future version will have reliable cross platform method, In the meantime we have to stick to currently available solutions.
– ljgww
Jan 13 '17 at 8:...
How to handle both a single item and an array for the same property using JSON.net
....Deserialize(reader, GetType(T)), T)
retVal = New List(Of T)() From { _
instance _
}
ElseIf reader.TokenType = JsonToken.StartArray Then
retVal = serializer.Deserialize(reader, objectType)
End If
Return retVal
End Functi...
In C, do braces act as a stack frame?
...fiers declared within the braces are only accessible within the braces, so from a programmer's point of view, it is like they are pushed onto the stack as they are declared and then popped when the scope is exited. However, compilers don't have to generate code that pushes/pops anything on entry/ex...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
...se" error than a RuntimeError, because you have to do more work to recover from it.
So which you want depends on how your project does its error handling. For instance, in our daemons, the main loop has a blank rescue which will catch RuntimeErrors, report them, and then continue. But in one or two...
Difference between == and ===
...er two object references both refer to the same object instance.
Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks. https://itun.es/us/jEUH0.l
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How to extract URL parameters from a URL with Ruby or Rails?
I have some URLs, like
7 Answers
7
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Why Does OAuth v2 Have Both Access and Refresh Tokens?
...good thread talking about uses of refresh tokens: OAuth Archives.
A quote from the above, talking about the security purposes of the refresh token:
Refresh tokens... mitigates the risk of a long-lived access_token leaking (query param in a log file on an insecure resource server, beta or poorly...
How to fix error with xml2-config not found when installing PHP from sources?
When I try to install php 5.3 stable from source on Ubuntu (downloading compressed installation file from http://www.php.net/downloads.php ) and I run ./configure I get this error:
...
What's the state of the art in email validation for Rails?
...ted:
/\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/
That was adapted from http://www.regular-expressions.info/email.html -- which you should read if you really want to know all the tradeoffs. If you want a more correct and much more complicated fully RFC822-compliant regex, that's on that pag...