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numpy: most efficient frequency counts for unique values in an array
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>>> pd.value_counts(x)
1 5
2 3
25 1
5 1
dtype: int64
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Get current AUTO_INCREMENT value for any table
... answer. MySQL documentation (emphasis added): "LAST_INSERT_ID() returns a 64-bit value representing the first automatically generated value successfully inserted for an AUTO_INCREMENT column as a result of the most recently executed INSERT statement." Intuitive! dev.mysql.com/doc/refman/5.6/en/…
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How to forward declare a template class in namespace std?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Rails: How does the respond_to block work?
...is (using JS-like pseudocode):
// get an instance to a responder from the base class
var format = get_responder()
// register html to render in the default way
// (by way of the views and conventions)
format.register('html')
// register json as well. the argument to .json is the second
// argumen...
Do I need dependency injection in NodeJS, or how to deal with …?
...utions.
Update:
This should address your specific question regarding database connections. I'd create a separate module for your to encapsulate your database connection logic. Something like this:
MyDbConnection.js: (be sure to choose a better name)
var db = require('whichever_db_vendor_i_use');...
Can I call memcpy() and memmove() with “number of bytes” set to zero?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to convert an NSTimeInterval (seconds) into minutes
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%ld if you are in 64 bit machine.
– Anoop Vaidya
Jul 25 '13 at 14:25
5
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Delimiters in MySQL
...`localhost` PROCEDURE `get_count_for_department`(IN the_department VARCHAR(64), OUT the_count INT)
BEGIN
SELECT COUNT(*) INTO the_count FROM employees where department=the_department;
END$$
/*DELIMITER is set to it's default*/
DELIMITER ;
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uwsgi invalid request block size
...ash_max_size 2048; server_tokens off;
server_names_hash_bucket_size 64; # server_name_in_redirect off;
include /etc/nginx/mime.types; default_type
application/octet-stream;
## # SSL Settings ##
ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
ssl_pr...
How can I avoid running ActiveRecord callbacks?
... that also works while creating an object
class Person < ActiveRecord::Base
attr_accessor :skip_some_callbacks
before_validation :do_something
after_validation :do_something_else
skip_callback :validation, :before, :do_something, if: :skip_some_callbacks
skip_callback :validation, :a...