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Inheriting class methods from modules / mixins in Ruby
...ors of the class. You can look at the ancestors of any class or module by calling its ancestors method:
module M
def foo; "foo"; end
end
class C
include M
def bar; "bar"; end
end
C.ancestors
#=> [C, M, Object, Kernel, BasicObject]
# ^ look, it's right here!
When you call a metho...
filtering NSArray into a new NSArray in Objective-C
... edited Jan 17 '18 at 6:45
Niall Kiddle
1,22911 gold badge1010 silver badges2929 bronze badges
answered Sep 21 '08 at 5:43
...
Setting Windows PowerShell environment variables
...t finds in the WindowsPowerShell directory under
My Documents folder. Typically you have a profile.ps1
file already there. The path on my computer is
C:\Users\JaredPar\Documents\WindowsPowerShell\profile.ps1
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How do I make Git use the editor of my choice for commits?
...
For Sublime Text:
Add this to the .gitconfig. The --wait is important (it allows to type text in sublime and will wait for save/close event.)
[core]
editor = 'subl' --wait
'subl' can be replaced by the full path of the executable but is usually available when correctly installed.
...
How can I wait In Node.js (JavaScript)? l need to pause for a period of time
... console.log('Welcome to My Console,');
}
function function2() {
// all the stuff you want to happen after that pause
console.log('Blah blah blah blah extra-blah');
}
// call the first chunk of code right away
function1();
// call the rest of the code and have it execute after 3 seconds...
Safely override C++ virtual functions
...ake the compiler check if the function I declared in the derived class actually overrides a function in the base class? I would like to add some macro or something that ensures that I didn't accidentally declare a new function, instead of overriding the old one.
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In Java 8 how do I transform a Map to another Map using a lambda?
...rEach((s, integer) -> map2.put(s, integer));
And because we're just calling an existing method we can use a method reference, which gives us:
map.forEach(map2::put);
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Is it possible to “await yield return DoSomethingAsync()”
...
What you are describing can be accomplished with the Task.WhenAll method. Notice how the code turns into a simple one-liner. What happens is that each individual url begins downloading and then WhenAll is used combine those operations into a single Task which can be awaited.
Task<IE...
How can I force WebKit to redraw/repaint to propagate style changes?
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All you need to do is read a size property, you dont need to change it back and forth.
– Andrew Bullock
Aug 6 '13 at 13:57
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Easy way to prevent Heroku idling?
...ynos seem to keep idling - my app has very low traffic but it's also not really acceptable in my case that my users have to wait 20+ seconds to spin up a new dyno.
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