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How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
...ead all about the array class here:
http://ruby-doc.org/core/classes/Array.html
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How to convert a Base64 string into a Bitmap image to show it in a ImageView?
...n) error when using Base64.URL_SAFE. I verified the base64 string using an HTML img tag. I am seeing the image on HTML page.
– mudit
Feb 11 '15 at 6:58
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How do I tell if a regular file does not exist in Bash?
... a string is not empty. ~ ibm.com/developerworks/library/l-bash-test/index.html
– BlueCacti
May 5 '14 at 11:06
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Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
... There's a setProps: facebook.github.io/react/docs/component-api.html#setprops
– Marius
Oct 3 '14 at 17:46
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How to get Twitter-Bootstrap navigation to show active link?
...text, path
end
end
Then, in a view (e.g. app/views/layouts/application.html.erb):
<%= nav_bar do %>
<%= nav_link 'Home', root_path %>
<%= nav_link 'Posts', posts_path %>
<%= nav_link 'Users', users_path %>
<% end %>
This example produces (when on the 'users...
Cache busting via params
...sions to exist at once so you can roll out a new version and if any cached HTML pages still exist that are requesting the older version, they will get the version that works with their HTML.
Note, in one of the largest versioned deployments anywhere on the internet, jQuery uses version numbers in t...
Preventing form resubmission
Page one contains an HTML form. Page two - the code that handles the submitted data.
12 Answers
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How can one display images side by side in a GitHub README.md?
...
Similar to the other examples, but using html sizing, I use:
<img src="image1.png" width="425"/> <img src="image2.png" width="425"/>
Here is an example
<img src="https://openclipart.org/image/2400px/svg_to_png/28580/kablam-Number-Animals-1.png" w...
Is there a CSS selector by class prefix?
...y after a space character. Class names are separated by whitespace per the HTML spec, hence the significant space character. This checks any other classes after the first if multiple classes are specified, and adds a bonus of checking the first class in case the attribute value is space-padded (whic...
jQuery AJAX cross domain
...Control: no-cache, no-store, max-age=0, must-revalidate
Content-Type: text/html; charset=utf-8
X-Ua-Compatible: IE=Edge
Etag: "c4ca4238a0b923820dcc509a6f75849b"
X-Runtime: 0.913606
Content-Length: 6
Server: WEBrick/1.3.1 (Ruby/1.9.2/2011-07-09)
Date: Thu, 01 Mar 2012 20:44:28 GMT
Connection: Keep-Al...