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What is java interface equivalent in Ruby?
...tests, where you can simply pass in an Array or a String instead of a more complicated Logger, even though Array and Logger do not share an explicit interface apart from the fact that they both have a method called <<.
Another example is StringIO, which implements the same Interface as IO and ...
Evenly space multiple views within a container view
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This was super helpful. As was the comment about just marking the spacer views as hidden. Then you can still see them in your storyboard/xib, but they don't show up in your app. Very nice.
– shulmey
Jul 7 '13 at 2:31
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Just what is an IntPtr exactly?
Through using IntelliSense and looking at other people's code, I have come across this IntPtr type; every time it has needed to be used I have simply put null or IntPtr.Zero and found most functions to work. What exactly is it and when/why is it used?
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Why doesn't TFS get latest get the latest?
...I did Get Latest Version and told I have the latest version, but if I do a comparison it lists the differences between the local and latest server edition. I'm OK with it not overwriting local work, but it should at least do a timestamp comparison and not mislead me with "You have the latest version...
Reference: What is variable scope, which variables are accessible from where and what are “undefined
...sues may seem annoying, but limited variable scope is essential to writing complex applications! If every variable you declare would be available from everywhere else inside your application, you'd be stepping all over your variables with no real way to track what changes what. There are only so man...
PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
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I have marked this as a community wiki so feel free to edit at your leisure.
What exactly is the Year 2038 problem?
"The year 2038 problem (also known as Unix Millennium Bug, Y2K38 by analogy to the Y2K problem) may cause some computer software to...
Appending a vector to a vector [duplicate]
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Should I hash the password before sending it to the server side?
...be what your systems use as a password. This way if your systems ever get compromised in the future, these credentials will only ever be useful against your own organisation, and nowhere else where the user has been lazy and used the same password.
So we have a key. Now we need to clean up any tr...
Running shell command and capturing the output
I want to write a function that will execute a shell command and return its output as a string , no matter, is it an error or success message. I just want to get the same result that I would have gotten with the command line.
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Why is there “data” and “newtype” in Haskell? [duplicate]
...can be evaluated as long as you don't try to peek inside.
Couldn't the compiler handle this for itself.
No, not really—this is a case where as the programmer you get to decide whether the constructor is strict or lazy. To understand when and how to make constructors strict or lazy, you have...