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Hidden features of Ruby
...ch means Proc objects can be used in case statements like so:
def multiple_of(factor)
Proc.new{|product| product.modulo(factor).zero?}
end
case number
when multiple_of(3)
puts "Multiple of 3"
when multiple_of(7)
puts "Multiple of 7"
end
...
Running a Python script from PHP
...ntu Server 10.04. I hope it helps you also on Arch Linux.
In PHP use shell_exec function:
Execute command via shell and return the complete output as a string.
It returns the output from the executed command or NULL if an error
occurred or the command produces no output.
<?php
$co...
Using .sort with PyMongo
...
If it is only one field, it can be .sort("_id", 1)
– Haris Np
Mar 15 '18 at 11:51
...
How to log something in Rails in an independent log file?
...t like the usual Rails logger:
class User < ActiveRecord::Base
def my_logger
@@my_logger ||= Logger.new("#{Rails.root}/log/my.log")
end
def before_save
my_logger.info("Creating user with name #{self.name}")
end
end
Here I used a class attribute to memoize the logger. This way ...
How do I get an ISO 8601 date on iOS?
...];
NSLocale *enUSPOSIXLocale = [NSLocale localeWithLocaleIdentifier:@"en_US_POSIX"];
[dateFormatter setLocale:enUSPOSIXLocale];
[dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZZZZZ"];
[dateFormatter setCalendar:[NSCalendar calendarWithIdentifier:NSCalendarIdentifierGregorian]];
NSDate *now ...
How can I generate an MD5 hash?
... Better yet, where possible use yourString.getBytes(StandardCharsets.UTF_8). This prevents handling an UnsupportedEncodingException.
– Hummeling Engineering BV
Mar 7 '19 at 10:28
...
Where does Console.WriteLine go in ASP.NET?
...
Application_Start: System.Console.SetOut(new DebugTextWriter());
– Stefan Steiger
Nov 23 '16 at 10:03
...
How to get response status code from jQuery.ajax?
...hould do what I want. However, when I try the same in my original code (txt_status replaced with jqxhr.status), I keep getting jqxhr.status of 0. Here's a screenshot: twitpic.com/4alsqj
– Mahesh
Mar 18 '11 at 9:36
...
Volley Android Networking Library
...ng (in your .profile or wherever you put PATH variables): 1. export ANDROID_HOME=<android-sdk-dir>
– Johan S
Jun 6 '13 at 12:17
...
How to do a non-greedy match in grep?
...y (minimal
match)
A (little) more complicated answer is:
(?s)<([a-z\-_0-9]+?) .*? model=BMW .*?>.*?</\1>
This will makes possible to match car1 and car2 in the following text
<car1 ... model=BMW ...>
...
...
...
</car1>
<car2 ... model=BMW ...>
...
...
...
</ca...