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Using bitwise OR 0 to floor a number
...in some cases?
Clarity is an obvious one, since we had to figure it out, and well,
I'm writting this question.
Will not pass jsLint.
32-bit signed integers only
Odd Comparative behavior: Math.floor(NaN) === NaN, while (NaN | 0) === 0
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What's an appropriate HTTP status code to return by a REST API service for a validation failure?
...ad Request). For instance if the URI is supposed to have an ISO-8601 date and you find that it's in the wrong format or refers to February 31st, then you would return an HTTP 400. Ditto if you expect well-formed XML in an entity body and it fails to parse.
(1/2016): Over the last five years WebDA...
Unique fields that allow nulls in Django
...trings are equal to empty strings for uniqueness checks, under both Django and database rules.
You can force the admin interface to store NULL for an empty string by providing your own customized model form for Foo with a clean_bar method that turns the empty string into None:
class FooForm(forms....
Difference between Pragma and Cache-Control headers?
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Pragma is the HTTP/1.0 implementation and cache-control is the HTTP/1.1 implementation of the same concept. They both are meant to prevent the client from caching the response. Older clients may not support HTTP/1.1 which is why that header is still in use.
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Including Google Web Fonts link or import?
...hey defer the loading of the included resource until the file is fetched.. and if you have a build process which "flattens" the @import's, then you create another problem with web fonts: dynamic providers like Google WebFonts serve platform-specific versions of the fonts, so if you simply inline the...
What is the main difference between PATCH and PUT request?
...d by browsers. So, I want to know what the main difference between PATCH and PUT requests are, and when we should use one or the other.
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What kind of virtual machine is BEAM (the Erlang VM)?
From what I understand a virtual machine falls into two categories either "system virtual machine" or a "process virtual machine". It's kind of fuzzy to me where BEAM lies. Is there another kind of virtual machine I am not aware of?
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Check if UIColor is dark or bright?
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do you know how to get the red , green and blue values of a color?
– Andre
Mar 24 '10 at 16:56
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In C#, can a class inherit from another class and an interface?
I want to know if a class can inherit from a class and an interface.
The example code below doesn't work but I think it conveys what I want to do.
The reason that I want to do this is because at my company we make USB, serial, Ethernet, etc device. I am trying to develop a generic component/interfa...
Printing hexadecimal characters in C
... case), your chars are being promoted to int via sign-extension.
Since c0 and 80 have a leading 1-bit (and are negative as an 8-bit integer), they are being sign-extended while the others in your sample don't.
char int
c0 -> ffffffc0
80 -> ffffff80
61 -> 00000061
Here's a solution:
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