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Ruby: Calling class method from instance
...lize(make=nil, year=nil)
self.year, self.make = year, make
end
end
Now let's use our class:
t = Truck.new("Honda", 2000)
t.make
# => "Honda"
t.year
# => "2000"
t = Truck.new
t.make
# => "Toyota"
t.year
# => nil
...
Conveniently Declaring Compile-Time Strings in C++
...nything to match the elegance of Scott Schurr's str_const presented at C++ Now 2012. It does require constexpr though.
Here's how you can use it, and what it can do:
int
main()
{
constexpr str_const my_string = "Hello, world!";
static_assert(my_string.size() == 13, "");
static_assert(...
Git for Windows: .bashrc or equivalent configuration files for Git Bash shell
...he file with "The syntax of the command is incorrect." but you can edit it now.
– tmorell
May 26 '13 at 15:49
31
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What's quicker and better to determine if an array key exists in PHP?
...f it exists and is not NULL; otherwise it returns its second operand.
So now you can assign a default value in case the value is null or if the key does not exist :
$var = $array[$key] ?? 'default value'
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Schema for a multilanguage database
.... If you do that from the app this will probably not be a problem.
Let me know what you think - I am also about to make a decision on this for our next application.
So far we have used your 3rd type.
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Copy folder recursively, excluding some folders
...ou using? Rsync is included by default in all mainstream Linux distros I know of, including RHEL, CentOS, Debian, and Ubuntu, and I believe it's in FreeBSD as well.
– siliconrockstar
Jan 30 '15 at 19:50
...
WCF vs ASP.NET Web API [closed]
... service client entities and service generation. No support in Web API. I know there is the HttpClient which is awesome, but it doesn't take care of entity generation and serialization/deserialization.
– Shimmy Weitzhandler
Feb 21 '17 at 4:28
...
How to recognize swipe in all 4 directions
...UISwipeGestureRecognizer has predeterminate Right direction.. And I don't know how make this for use other directions..
17 ...
UnicodeEncodeError: 'charmap' codec can't encode - character maps to , print function [du
...ssue for me. Regarding the above: "sys.stdout.encoding" probably does not know your terminal encoding, but only the system-wide encoding. If this is not equal to the terminal, then only parsing some environment variables may help. But that wont work always, as a terminal must not tell the other side...
Is there a way to detach matplotlib plots so that the computation can continue?
...
print 'yay'
print 'computation continues...'
print 'that rocks.'
print 'Now lets wait for the graph be closed to continue...:'
p.join()
That has the overhead of launching a new process, and is sometimes harder to debug on complex scenarios, so I'd prefer the other solution (using matplotlib's n...