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How do you list the active minor modes in emacs?
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Eager load polymorphic
... belongs_to :shop, you are giving ActiveRecord the information it needs to complete the join.
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How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...oing to build, say, a directory structure where a directory is named for a commit in a Git repository, and you want it to be short enough to make your eyes not bleed, but long enough that the chance of it colliding would be negligible, how much of the SHA substring is generally required?
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How to: Define theme (style) item for custom widget
... @Michael, Yes I meant a library that developers can use. Your comment solved my issue. Thanks!
– theDazzler
Dec 9 '13 at 10:09
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Why `null >= 0 && null
...You can see the inner details of this process in the The Abstract Equality Comparison Algorithm and The Abstract Relational Comparison Algorithm.
In Summary:
Relational Comparison: if both values are not type String, ToNumber is called on both. This is the same as adding a + in front, which for ...
What does the slash mean in help() output?
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IntelliJ IDEA with Junit 4.7 “!!! JUnit version 3.8 or later expected:”
...ucture | Modules | Dependencies, and move the junit-4.7.jar up, so that it comes before Android 1.6 Platform in the classpath. Now the test runner will be happy as it loads the new JUnit version.
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Resolving ambiguous overload on function pointer and std::function for a lambda using +
...llowing code, the first call to foo is ambiguous, and therefore fails to compile.
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Types in MySQL: BigInt(20) vs Int(20)
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See http://dev.mysql.com/doc/refman/8.0/en/numeric-types.html
INT is a four-byte signed integer.
BIGINT is an eight-byte signed integer.
They each accept no more and no fewer values than can be stored in their respective number of bytes. T...
When and why would you seal a class?
...he inheritance to the places where it really made full sense, because it becomes expensive performance-wise if left untreated. The sealed keyword tells the CLR that there is no class further down to look for methods, and that speeds things up.
In most performance-enhancing tools on the market nowa...