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What is attr_accessor in Ruby?
... Person.new
person.name = 'Dennis'
person.name # => "Dennis"
Awesome. Now we can write and read instance variable @name using reader and writer methods. Except, this is done so frequently, why waste time writing these methods every time? We can do it easier.
class Person
attr_reader :name
...
How to navigate to a directory in C:\ with Cygwin?
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You may also use cd c:/
– ihaveitnow
Aug 16 '15 at 17:04
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Show data on mouseover of circle
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I like tipsy. My only issue now is that it points to the upper left corner of the circle, rather than the edge as in that demo. I'm not finding any obvious reason why. jsfiddle.net/scottieb/JwaaV (tipsy at very bottom)
– ScottieB...
How do I set a cookie on HttpClient's HttpRequestMessage
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Trying this now... if it works... you deserve a good ol' Canadian hug.
– Maxime Rouiller
Dec 18 '15 at 19:56
11
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Java: Class.this
...sing classes (JLS 8.1), so a.this in your example is not defined. I don't know if this constraint is true for bytecode. Maybe not.
– aioobe
Apr 29 '15 at 6:33
add a comment
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How to cancel a Task in await?
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Wow great info! That worked perfectly, now I need to figure out how to handle the exception in the async method. Thanks man! I'll read the stuff you suggested.
– Carlo
Apr 13 '12 at 2:48
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...se. That is without the examples, I was still unsure, but with them, I am now sure about what the other answers mean.
– Solx
Apr 29 '14 at 14:41
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What's the difference between EscapeUriString and EscapeDataString?
...at
That's a valid URI (try it), and EscapeUriString will not modify it.
Now consider querying Google for "happy c++":
https://www.google.com/?q=happy+c++
That's a valid URI (try it), but it produces a search for "happy c", because the two pluses are interpreted as spaces. To fix it, we can ...
What's the point of having pointers in Go?
I know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference.
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Ruby: extend self
...ways helps to think of extend as include inside the singleton class (also known as meta or eigen class).
You probably know that methods defined inside the singleton class are basically class methods:
module A
class << self
def x
puts 'x'
end
end
end
A.x #=> 'x'
Now th...