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Why does Go have a “goto” statement
...1)
}
return z / ((1 + Euler*x) * x)
}
The goto in this case saves us from introducing another (boolean) variable used just for control-flow, checked for at the end. In this case, the goto statement makes the code actually better to read and easier follow (quite in contrary to the argument agai...
How do I pass extra arguments to a Python decorator?
...beep')
return result
return my_logic
# usage example from here on
@NiceDecorator(param_bar='baaar')
def example():
print('example yay')
example()
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What is the EAFP principle in Python?
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From the glossary:
Easier to ask for forgiveness than permission. This common Python coding style assumes the existence of valid keys or attributes and catches exceptions if the assumption proves false. This clean and fas...
Is there a difference between foo(void) and foo() in C++ or C?
...res where introduced, the C committee had to disambiguate the no-parameter from the old syntax, and introduced the void foo(void) syntax. C++ took it for the sake of compatibility.
– Matthieu M.
Sep 14 '11 at 8:14
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JSON: why are forward slashes escaped?
... Here's what I came up with:
It seems, my first thought [that it comes from its JavaScript
roots] was correct.
'\/' === '/' in JavaScript, and JSON is valid JavaScript. However,
why are the other ignored escapes (like \z) not allowed in JSON?
The key for this was reading
http://w...
Logical operator in a handlebars.js {{#if}} conditional
... for the limitations, I haven't found a way to access "upper scope levels" from within the expression, say you're in a each scope, {{#each}} ... {{xif ' ../name === this.name' }} {{/each}} ... but I am still investigating..
– bentael
Mar 12 '14 at 16:05
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Parsing IPv6 extension headers containing unknown extensions
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What if I encounter an unrecognized extension header type?
From RFC 2460:
If, as a result of processing a header, a node is required to proceed
to the next header but the Next Header value in the current header is
unrecognized by the node, it should discard the packet a...
innerText vs innerHTML vs label vs text vs textContent vs outerText
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From MDN:
Internet Explorer introduced element.innerText. The intention is pretty much the same [as textContent] with a couple of differences:
Note that while textContent gets the content of all elements, including <scri...
Pass Variables by Reference in Javascript
...ck-and-forth in the Reddit comments that a big part of the confusion stems from the unfortunate collision involving the word "reference". The terminology "pass by reference" and "pass by value" predates the concept of having "objects" to work with in programming languages. It's really not about obje...
ASP.NET MVC: Unit testing controllers that use UrlHelper
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A modified implementation from eu-ge-ne. This one returns a generated link based on the routes defined in the application. eu-ge-ne's example always returned a fixed response. The approach below will allow you to test that the correct action/controlle...