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Calculate distance between two points in google maps V3
...t data is google.maps.LatLng objects. If you just have raw data like {lat: __, lon: __} then you would instead use p1.lat, for example.
– Don McCurdy
Mar 24 '17 at 20:12
...
A cron job for rails: best practices?
...> :environment do
puts "Pulling new requests..."
EdiListener.process_new_messages
puts "done."
end
To execute from the command line, this is just "rake cron". This command can then be put on the operating system cron/task scheduler as desired.
Update this is quite an old question and ans...
MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start
...e the file “envvars” located in /Applications/MAMP/Library/bin into “_envvars”
Test Update: It works!
Works for Yosemite release too!
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...
Using 'return' in a Ruby block
...; }
LocalJumpError: unexpected return
from (irb):7:in `block in irb_binding'
from (irb):2:in `call'
from (irb):2:in `thing'
from (irb):6
from /home/mirko/.rvm/rubies/ruby-1.9.1-p378/bin/irb:15:in `<main>'
irb(main):009:0> thing { break 6 * 7 }
=> 4...
How to rethrow InnerException without losing stack trace in C#?
... ObjectManager calls SetObjectData
// voila, e is unmodified save for _remoteStackTraceString
}
This wastes a lot of cycles compared to calling InternalPreserveStackTrace via cached delegate, but has the advantage of relying only on public functionality. Here are a couple of common usage patt...
How to convert a std::string to const char* or char*?
...hat needs const char* you can use
std::string str;
const char * c = str.c_str();
If you want to get a writable copy, like char *, you can do that with this:
std::string str;
char * writable = new char[str.size() + 1];
std::copy(str.begin(), str.end(), writable);
writable[str.size()] = '\0'; // ...
Read entire file in Scala?
...rt into any file which requires file manipulation:
import scala.io.Source._
With this, you can now do:
val lines = fromFile("file.txt").getLines
I would be wary of reading an entire file into a single String. It's a very bad habit, one which will bite you sooner and harder than you think. Th...
Which is faster in Python: x**.5 or math.sqrt(x)?
...
In python 2.6 the (float).__pow__() function uses the C pow() function and the math.sqrt() functions uses the C sqrt() function.
In glibc compiler the implementation of pow(x,y) is quite complex and it is well optimized for various exceptional cases...
Delete multiple objects in django
... to delete any Post with a future publication date
Post.objects.filter(pub_date__gt=datetime.now()).delete()
You do, however, need to come up with a way to narrow down your QuerySet. If you just want a view to delete a particular object, look into the delete generic view.
EDIT:
Sorry for the mi...
How do I remove a key from a JavaScript object? [duplicate]
...isIsObject= {
'Cow' : 'Moo',
'Cat' : 'Meow',
'Dog' : 'Bark'
};
_.omit(thisIsObject,'Cow'); //It will return a new object
=> {'Cat' : 'Meow', 'Dog' : 'Bark'} //result
If you want to modify the current object, assign the returning object to the current object.
thisIsObject = _.omit...