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How to trim whitespace from a Bash variable?
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When should you use 'friend' in C++?
...ange the name.
You can take this simple example further by considering a more complex class such as a Window. Quite likely a Window will have many function/data elements that should not be publicly accessible, but ARE needed by a related class such as a WindowManager.
class Child
{
//Mother class...
What is HEAD in Git?
...he commit from which the working tree's current state was initialized. In more practical terms, it can be thought of as a symbolic reference to the checked-out commit.
– Ben Collins
Dec 9 '13 at 7:25
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What is the fastest integer division supporting division by zero no matter what the result is?
... turned out to be such a popular question and answer, I'll elaborate a bit more. The above example is based on programming idiom that a compiler recognizes. In the above case a boolean expression is used in integral arithmetic and the use of condition flags are invented in hardware for this purpose....
What's the difference between SCSS and Sass?
From what I've been reading, Sass is a language that makes CSS more powerful with variable and math support.
13 Answers
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Gradient of n colors ranging from color 1 and color 2
...u can give the resulting vector of colours to colorRampPalette to generate more colours along that ramp. For example: colorRampPalette(brewer.pal(8, "Spectral")).
– jbaums
Apr 30 '14 at 23:15
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Testing two JSON objects for equality ignoring child order in Java
...t' relationship of the children, not equality. the 'other' object may have more children then in _children, and this method would still return true.
– Yoni
Feb 13 '10 at 7:28
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PyCharm shows unresolved references error for valid code
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What exactly is Arel in Rails 3.0?
...e?
Yes. For example, as I mentioned above, it is much easier to construct more complex queries from simpler parts.
will it lead to more efficient SQL queries?
Yes. The fact that ARel has a proper object model for the queries means that it can perform optimizations on those queries long before it ...
Why should we typedef a struct so often in C?
... keystrokes, it also can make the code cleaner since it provides a smidgen more abstraction.
Stuff like
typedef struct {
int x, y;
} Point;
Point point_new(int x, int y)
{
Point a;
a.x = x;
a.y = y;
return a;
}
becomes cleaner when you don't need to see the "struct" keyword all over t...