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How to set HTTP headers (for cache-control)?
...tions, but under Debian you can either use a2enmod or make a symbolic link from /etc/apache2/mods-available/headers.load to /etc/apache2/mods-enabled/headers.load.
– Skippy le Grand Gourou
Jul 5 '18 at 14:19
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Transform DateTime into simple Date in Ruby on Rails
...rror: undefined method 'to_date' for #<DateTime: -1/2,0,2299161>
from (irb):1
>> require 'active_support/core_ext'
=> true
>> DateTime.new.to_date
=> Mon, 01 Jan -4712
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Create objective-c class instance by name?
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id object = [[NSClassFromString(@"NameofClass") alloc] init];
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Is it a good idea to use Google Guava library for Android development?
...- not only small ones, i.e. Google Search and Youtube, which directly come from Google.
(You should also see compatibility note.)
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How to get position of a certain element in strings vector, to use it as an index in ints vector?
...tor knowing an iterator pointing to the element, simply subtract v.begin() from the iterator:
ptrdiff_t pos = find(Names.begin(), Names.end(), old_name_) - Names.begin();
Now you need to check pos against Names.size() to see if it is out of bounds or not:
if(pos >= Names.size()) {
//old_n...
HTTP Basic Authentication credentials passed in URL and encryption
...or application will initiate a SSL connection with the IP address received from the DNS request. Certificates will be exchanged and this happens at the transport level. No application level information will be transferred at this point. Remember that the Basic authentication is part of HTTP and HTTP...
Django set default form values
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If you are creating modelform from POST values initial can be assigned this way:
form = SomeModelForm(request.POST, initial={"option": "10"})
https://docs.djangoproject.com/en/1.10/topics/forms/modelforms/#providing-initial-values
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Boolean vs tinyint(1) for boolean values in MySQL
...tinyint as a preference, because boolean doesn't do what you think it does from the name, so it makes for potentially misleading code. But at a practical level, it really doesn't matter -- they both do the same thing, so you're not gaining or losing anything by using either.
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Collection that allows only unique items in .NET?
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HashSet<T> is what you're looking for. From MSDN (emphasis added):
The HashSet<T> class provides high-performance set operations. A set is a collection that contains no duplicate elements, and whose elements are in no particular order.
Note that the Ha...
What's the difference between `1L` and `1`?
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From the Constants Section of the R Language Definition:
We can use the ‘L’ suffix to qualify any number with the intent of making it an explicit integer.
So ‘0x10L’ creates the integer value 16 from the hexadec...