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What is the most efficient way to store tags in a database?
I am implementing a tagging system on my website similar to one stackoverflow uses, my question is - what is the most effective way to store tags so that they may be searched and filtered?
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What's the nearest substitute for a function pointer in Java?
...ctly the same thing, except for a small calculation that's going to change one line of code. This is a perfect application for passing in a function pointer to replace that one line, but Java doesn't have function pointers. What's my best alternative?
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How to overload functions in javascript?
...type checking on arguments or required qty of arguments, you can just have one implementation of myFunc() that can adapt to what arguments were passed to it by checking the type, presence or quantity of arguments.
jQuery does this all the time. You can make some of the arguments optional or you ca...
Difference between method and function in Scala
...ns (6.23) and Method Values (6.7). Curiously, function values is spoken of one time on 3.2.9, and no where else.
A Function Type is (roughly) a type of the form (T1, ..., Tn) => U, which is a shorthand for the trait FunctionN in the standard library. Anonymous Functions and Method Values have fu...
Understanding “randomness”
... part of the intuition, at least for sums. Imagine taking the "average" of one rolled die. Now imagine taking the average of two dice. Now one hundred. What happens to the chance of getting a one or a six for the average as you add more dice?
– johncip
Oct 18 '...
What is the difference between == and Equals() for primitives in C#?
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Remember that, in the code of the question, if one changes int age = 25; to const int age = 25;, then the outcome will change. That is because an implicit conversion from int to short does exist in that case. See Implicit constant expression conversions.
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Is there a way to @Autowire a bean that requires constructor arguments?
...d am using @Autowire annotation for my class members as much as possible. One of the beans that I need to autowire requires arguments to its constructor. I've looked through the Spring docs, but cannot seem to find any reference to how to annotate constructor arguments.
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How can I load an object into a variable name that I specify from an R data file?
...dRDS, correspondingly, save and restore all object's attributes, including ones created by an application (via attr)? I tried to use this approach instead of save and load, trying to find a workaround for my problem. Howver, it doesn't seem to be the case, unless I'm doing something wrong: stackover...
Unit testing Anti-patterns catalogue
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Yeah, that's my favorite one. I do it all the time. Oh... wait... you said that this was a bad thing. :-)
– guidoism
Sep 10 '10 at 22:37
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Best Practices: Salting & peppering passwords?
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Ok. Seeing as I need to write about this over and over, I'll do one last canonical answer on pepper alone.
The Apparent Upside Of Peppers
It seems quite obvious that peppers should make hash functions more secure. I mean, if the attacker only gets your database, then your users password...