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Rails migration for change column

...). If it starts with "add" or "remove" then the migration will be automatically populated with code to add or remove columns, which saves you writing that code yourself. – Alex Korban Oct 26 '11 at 19:35 ...
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How does the “final” keyword in Java work? (I can still modify an object.)

... You are always allowed to initialize a final variable. The compiler makes sure that you can do it only once. Note that calling methods on an object stored in a final variable has nothing to do with the semantics of final. In other words:...
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p vs puts in Ruby

... world of programming, due to your mention of debugging, p or puts? Should all "p" be replaced with "puts" upon completion of debugging?? I see, in an above comment, that p returns an object, which is a huge difference. Im not sure if this answer is complete if it only mentions a small difference t...
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Difference between hard wrap and soft wrap?

...u come back later and edit/add/remove words later on. (You can do this manually in emacs with M-q.) This is rather annoying, since obsessive compulsive people like me then go back and have to manually re-insert the hard breaks at the appropriate points. On the other hand, soft wrapping is annoyin...
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html (+css): denoting a preferred place for a line break

... Text </span> it will wrap first in preferred blocks and then in smaller fragments as needed. share | improve this answer | follow | ...
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No visible cause for “Unexpected token ILLEGAL”

... code is parsed by the JavaScript interpreter, it gets broken into pieces called "tokens". When a token cannot be classified into one of the four basic token types, it gets labelled "ILLEGAL" on most implementations, and this error is thrown. The same error is raised if, for example, you try to run...
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When to use AtomicReference in Java?

...ke the key to needing this is because you need to do a "compareAndSet". If all I needed to do was set I wouldn't need the AtomicObject at all because of reference updates themselves being atomic? – sMoZely Jan 20 '13 at 21:46 ...
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Rename master branch for both local and remote Git repositories

...reated. the pull will attempt to merge master and master-old. So it's generally a bad idea unless you have the cooperation of everyone who has checked out the repository previously. Note: Newer versions of git will not allow you to delete the master branch remotely by default. You can override this...
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How do you specify a different port number in SQL Management Studio?

... @mark Agreed, but it should be no surprise really - this is the same company that ignored the rest of the world and decided to use backslashes in file paths. sigh – Scott Jan 9 '13 at 15:31 ...
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When would I need a SecureString in .NET?

...-securestring . We should remove encryption from SecureString across all platforms in .NET Core - We should obsolete SecureString - We probably shouldn't expose SecureString in .NET Core share | ...