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When is JavaScript's eval() not evil?
...ant to eval() user input, because that input could potentially be "rm -rf /etc/important-file" or worse. Again, JavaScript in a browser doesn't have that problem, because the program is running in the user's own account anyway. Server-side JavaScript could have that problem.
On to your specific ca...
How to model type-safe enum types?
...e WeekDay = Value
val Mon = Value("Mon")
val Tue = Value("Tue")
... etc
}
You get more sensible results:
WeekDay.valueOf("Sun") //returns Some(Sun)
WeekDay.Tue.toString //returns Tue
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Role-based access control (RBAC) vs. Claims-based access control (CBAC) in ASP.NET MVC
... code if the user has some property like "Facebook User", "Long time User" etc. Let me give an example. Say you want to allow access to a specific page if the user is logged in using Facebook. Now, would you create a permission 'Facebook' for that user ? No, 'Facebook' does not sound like a permissi...
setImmediate vs. nextTick
...─────┬────────────┘ │ data, etc. │
│ ┌──────────┴────────────┐ └───────────────┘
│ │ check │
│ └──────────┬...
What is the difference between lock and Mutex?
...re are several other "minor" differences, like how abandonment is handled, etc.
The same can be said about ReaderWriterLock and ReaderWriterLockSlim in 3.5, Semaphore and the new SemaphoreSlim in .NET 4.0 etc.
It is true that the latter xxSlim classes cannot be used as a system-wide sync primitives...
How to store arrays in MySQL?
... provides a convenient new way to store complex data: lists, dictionaries, etc.
That said, rrays don't map well databases which is why object-relational maps can be quite complex. Historically people have stored lists/arrays in MySQL by creating a table that describes them and adding each value as ...
Scalar vs. primitive data type - are they the same thing?
... typically contrasted with compounds, such as arrays, maps, sets, structs, etc. A scalar is a "single" value - integer, boolean, perhaps a string - while a compound is made up of multiple scalars (and possibly references to other compounds). "Scalar" is used in contexts where the relevant distinct...
How to unit test abstract classes: extend with stubs?
...of the Abstract class under test. Those methods can be no-op, return null, etc. as they will not be tested. The test class tests only the non-abstract public API (ie the Interface implemented by the Abstract class). For any class that extends the Abstract class you'll need additional test classes ...
What is getattr() exactly and how do I use it?
...mple you have an object person, that has several attributes: name, gender, etc.
You access these attributes (be it methods or data objects) usually writing: person.name, person.gender, person.the_method(), etc.
But what if you don't know the attribute's name at the time you write the program? For ...
Outline effect to text
...t some parts of my text to make it more intuitive - like the names, links, etc. Changing the link colors etc. are common nowadays, so I want something new.
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