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Why does jQuery or a DOM method such as getElementById not find the element?
... the bottom is generally considered a best practice.
Option 2: jQuery's ready()
Defer your script until the DOM has been completely parsed, using $(handler):
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
$(function() ...
Regular expression that matches valid IPv6 addresses
...{0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))
For ease of reading, the following is the above regular expression split at major OR points into separate lines:
# IPv6 RegEx
(
([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}| # 1:2:3:4:5:6:7:8
([0-9a-fA-F]{1,4}:){1,7}:| ...
Why are iframes considered dangerous and a security risk?
...DENY also protects from rendering performance side-channel attack that can read content cross-origin (also known as "Pixel perfect Timing Attacks").
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fastest MD5 Implementation in JavaScript
...n describing what he learned while writing his implementation. It's a good read for anyone interested in performant javascript.
http://www.webreference.com/programming/javascript/jkm3/
His MD5 implementation can be found here
...
Setup RSpec to test a gem (not Rails)
...that RSpec is a development dependency of your gem. Edit the gemspec so it reads:
spec.add_development_dependency "rspec"
Next, create spec/spec_helper.rb and add something like:
require 'bundler/setup'
Bundler.setup
require 'your_gem_name' # and any other gems you need
RSpec.configure do |con...
Does JavaScript have “Short-circuit” evaluation?
...uch as operator precedence, if you're looking for a quick definition and already understand how short-circuiting works, I'd recommending checking other answers.
What we (thought we) knew so far:
First let's inspect the behaviour we are all familiar with, inside the if() block, where we use &...
How to change the default charset of a MySQL table?
...fit the same number of characters as the old column type.
I recommend you read the ALTER TABLE MySQL documentation before modifying any live data.
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What is a smart pointer and when should I use one?
...st:: smart pointers or std::auto_ptr except in special cases which you can read up on if you must.
Hey, I didn't ask which one to use!
Ah, but you really wanted to, admit it.
So when should I use regular pointers then?
Mostly in code that is oblivious to memory ownership. This would typically be ...
Search for executable files using find command
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Indeed, I misread your answer. Sorry for making it more complicated :).
– sourcejedi
Jul 19 '14 at 15:30
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Default template arguments for function templates
...r called the upcomming standard C++11 after last saturdays meeting. I just read it today and feel like sharing :) herbsutter.wordpress.com/2010/03/13/…
– David Rodríguez - dribeas
Mar 15 '10 at 14:05
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