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Why use symbols as hash keys in Ruby?
...ch other.
Long answer:
https://web.archive.org/web/20180709094450/http://www.reactive.io/tips/2009/01/11/the-difference-between-ruby-symbols-and-strings
http://www.randomhacks.net.s3-website-us-east-1.amazonaws.com/2007/01/20/13-ways-of-looking-at-a-ruby-symbol/
...
How to make a HTTP request using Ruby on Rails?
...n use Ruby's Net::HTTP class:
require 'net/http'
url = URI.parse('http://www.example.com/index.html')
req = Net::HTTP::Get.new(url.to_s)
res = Net::HTTP.start(url.host, url.port) {|http|
http.request(req)
}
puts res.body
...
Is it possible to center text in select box?
...e.
However, using a jQuery plugin, you could style the dropdown:
https://www.filamentgroup.com/lab/jquery-ui-selectmenu-an-aria-accessible-plugin-for-styling-a-html-select.html
This plugin hides the select element, and creates span elements etc on the fly to display a custom drop down list style....
What is the best way to insert source code examples into a Microsoft Word document?
...lus plus as described above. However, I use the tool present here - http://www.planetb.ca/syntax-highlight-word. This gives me the option to use line number, as well as very nice syntax highlighting (Please use Google Chrome for this step, because syntax highlight is not copied when using Mozilla Fi...
Looking for a good world map generation algorithm [closed]
...
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document&l...
how to ignore namespaces with XPath
...dae
<?xml version="1.0" encoding="utf-8"?>
<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<asset>
<contributor>
<author>Blender User</author>
<authoring_tool...
What's the right OAuth 2.0 flow for a mobile app
...h0.com/blog/oauth-2-best-practices-for-native-apps/
Another one is https://www.oauth.com/oauth2-servers/oauth-native-apps/ which states
The current industry best practice is to use the Authorization Flow
while omitting the client secret, and to use an external user agent to
complete the flow. An ex...
Chrome's remote debugging (USB debugging) not working for Samsung Galaxy S3 running android 4.3
...int I've installed, and later uninstalled the drivers from Samsung: http://www.samsung.com/us/support/downloads/ > Mobile > Phones > Galaxy S > S III > Unlocked > http://www.samsung.com/us/support/owners/product/galaxy-s-iii-unlocked#downloads
...
What is & used for
...s equal to & in HTML
I looked over this post someone had made: http://www.webmasterworld.com/forum21/8851.htm
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How do I get SUM function in MySQL to return '0' if no values are found?
...table
WHERE ...
To see it in action, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fiddle
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT NULL AUT...