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Difference between DateTime and Time in Ruby
... to handle larger values without producing errors.
DateTime is a calendar-based approach where the year, month, day, hour, minute and second are stored individually. This is a Ruby on Rails construct that serves as a wrapper around SQL-standard DATETIME fields. These contain arbitrary dates and can...
Force HTML5 youtube video
... 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 do I increase the RAM and set up host-only networking in Vagrant?
... 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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Is there an online name demangler for C++? [closed]
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This might be a bit late, but I created one, based on this question. It works with the inputs I tried on, supports g++ and msvc++ via __cxa_demangle and __unDName, compiled to Javascript via Emscripten. Hope this helps someone: c++filtjs
Edit: Fixed escaping problem
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Constant Amortized Time
...count of money
5th room size = fits 32 count of money
6th room size = fits 64 count of money
7th room size = fits 128 count of money
8th room size = fits 256 count of money
9th room size = fits 512 count of money
10th room size= fits 1024 count of money
11th room size= fits 2,048 count of money
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String.Join method that ignores empty strings?
...nter this character by keyboard).
Also, if you get the values from a database, then it's even simpler, since you can do it in SQL directly:
PostgreSQL & MySQL:
SELECT
concat_ws(' / '
, NULLIF(searchTerm1, '')
, NULLIF(searchTerm2, '')
, NULLIF(searchTerm3, '')
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Does use of final keyword in Java improve the performance?
...t it's by far the most common JVM, so...)
To my mind you should use final based on clear design and readability rather than for performance reasons. If you want to change anything for performance reasons, you should perform appropriate measurements before bending the clearest code out of shape - th...
How to get the currently logged in user's user id in Django?
...checks for expired sessions and then figures out which user they belong to based on the decoded _auth_user_id attribute:
def ajax_find_logged_in_users(request, client_url):
"""
Figure out which users are authenticated in the system or not.
Is a logical way to check if a user has an expi...
memory_get_peak_usage() with “real usage”
...d by emalloc() while memory_get_usage(true) returns milestone which can be demonstration here Memory Mile Store
I want to know how close was the script to hit that limit.
That would take some maths and might only work in loops or specific use cases. Why did i say such ?
Imagine
ini_set('memory...
What is the simplest way to convert a Java string from all caps (words separated by underscores) to
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Another option is using Google Guava's com.google.common.base.CaseFormat
George Hawkins left a comment with this example of usage:
CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, "THIS_IS_AN_EXAMPLE_STRING");
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