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PHP: How to send HTTP response code?
...e code it does not understand, PHP will replace the code with one it knows from the same group. For example "521 Web server is down" is replaced by "500 Internal Server Error". Many other uncommon response codes from other groups 2xx, 3xx, 4xx are handled this way.
On a server with php-fpm and nginx...
How do I add multiple arguments to my custom template filter in a django template?
...% if X|is_in:"1,2,3,4" %}
Now we can create your templatetag like this:
from django.template import Library
register = Library()
def is_in(var, args):
if args is None:
return False
arg_list = [arg.strip() for arg in args.split(',')]
return var in arg_list
register.filter(is...
How can I programmatically check whether a keyboard is present in iOS app?
...llers, all of which contain UITextFields. Using this method, i cannot tell from my parent view controller whether the keyboard is shown. The only reliable way is to use the notification method explained in the other answers
– TimWhiting
Jul 16 '15 at 20:43
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What's the best practice for primary keys in tables?
...ore assuming that "it" will never change, you're one finance decision away from a database rebuild.
– Andrew Hill
Sep 11 '15 at 2:04
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How to add custom validation to an AngularJS form?
...ion", currently, I want to add another answer to this for anyone coming in from there.
There's a method in FormController.$setValidity but that doesn't look like a public API so I rather not use it.
It's "public", no worries. Use it. That's what it's for. If it weren't meant to be used, the A...
handle textview link click in my android app
...when ever it isn't null, I'll know it was invoked by means of such a link. From there, I extract the instructions I need from the url to be able to display the appropriate data.
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Why is 'this' a pointer and not a reference?
...uld argue it either way. But C++ evolved gradually in response to feedback from a community of users (like most successful things). The value of backward compatibility totally overwhelms the minor advantages/disadvantages stemming from this being a reference or a pointer.
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How to prevent that the password to decrypt the private key has to be entered every time when using
I've an automatic building service which download from a git private repository.
The problem is that when it tries to clone repository it need to provide the password, because it is not remembered; so because there is no human interaction, it waits forever the password.
How can I force it to remembe...
Convert string to symbol-able in ruby
...o be able to do and undo an operation. .to_sym can convert one direction (from string to symbol), and .to_s can convert (from symbol to string). and if you are dealing with an array consider .map(&:to_sym) or .map(&to_s) to convert all elements.
– jasonleonhard
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Why does a function with no parameters (compared to the actual function definition) compile?
...rguments when using an ellipsis.
And again for the sake of completeness. From C11 specification 6:11:6 (page: 179)
The use of function declarators with empty parentheses (not
prototype-format parameter type declarators) is an obsolescent
feature.
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