Slim Slim is template language which works with Rails3, […]

Web Server for Rails In Rails, we can use WEBrick for d […]

rbenv rbenv is Ruby version management and virtual envi […]

Zip package Use rubyzip Git hub Gem package has this li […]

JSON JSON is is general library in Ruby. Hash to Json g […]

Contents Directory File Directory Open directory open d […]

Drag and Drop Use drag and drop event handler of jQuery […]

Easy Implementation There are a lot of library for this […]

image_tag <img> tag Options alt, size, width, hei […]

Foreign key In rails, has_many, belongs_to can express […]