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What's the difference between :: (double colon) and -> (arrow) in PHP?

... used to access static members, such usage is discouraged), while :: is usually used to access static members (though in a few special cases, it's used to access instance members). In general, :: is used for scope resolution, and it may have either a class name, parent, self, or (in PHP 5.3) static...
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do N times (declarative syntax)

...based on Array.forEach, without any library, just native vanilla. To basically call something() 3 times, use: [1,2,3].forEach(function(i) { something(); }); considering the following function: function something(){ console.log('something') } The outpout will be something something somethi...
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What is the difference between “px”, “dip”, “dp” and “sp”?

...lems with dp while everything works fine with dip – DallaRosa Jul 4 '11 at 6:07 255 One note abou...
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Where to put view-specific javascript files in an ASP.NET MVC application?

... .js file next to your view: You can access it directly: http://yourdomain.com/YourController/Index.js Below is the source: namespace JavaScriptViews { public class JavaScriptActionDescriptor : ActionDescriptor { private string actionName; private ControllerDescrip...
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Entity Framework - Invalid Column Name '*_ID"

...ne for you to try to make the connection between the tables. This specifically happens with ICollection and has driven me "batty" trying to figure it out. share | improve this answer | ...
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What is the difference between char s[] and char *s?

...puts the literal string in read-only memory and copies the string to newly allocated memory on the stack. Thus making s[0] = 'J'; legal. share | improve this answer | foll...
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Why is pow(a, d, n) so much faster than a**d % n?

...was taking so long (> 20 seconds) for midsize numbers (~7 digits). I eventually found the following line of code to be the source of the problem: ...
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How to automatically generate N “distinct” colors?

I wrote the two methods below to automatically select N distinct colors. It works by defining a piecewise linear function on the RGB cube. The benefit of this is you can also get a progressive scale if that's what you want, but when N gets large the colors can start to look similar. I can also imagi...
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Class method decorator with self arguments?

... @wraps(f) def wrapped(self, *f_args, **f_kwargs): if callable(_lambda) and search(pattern, (_lambda(self) or '')): f(self, *f_args, **f_kwargs) return wrapped return wrapper class MyTest(object): def __init__(self): self.name = 'foo' ...
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Python nonlocal statement

... @Dustin - Actually, if you had class A with an attribute x and a subclass B defined in it, you would refer to x from within B as A.x – Anon Aug 11 '09 at 18:37 ...