RUBY Using string METHODS - YouTube.
Ruby opening a file. A Ruby file can be created using different methods for reading, writing or both. There are two methods to open a file in Ruby: File.new method: Using this method a new file can be created for reading, writing or both. File.open method: Using this method a new file object is created. That file object is assigned to a file.
Introduction. A string is a sequence of one or more characters that may consist of letters, numbers, or symbols. Strings in Ruby are objects, and unlike other languages, strings are mutable, which means they can be changed in place instead of creating new strings. You’ll use strings in almost every program you write. Strings let you display and communicate with your users using text.
To open the Ruby sample application, look for the storage-blobs-ruby-quickstart folder, and open the example.rb file. Copy your credentials from the Azure portal. The sample application needs to authorize access to your storage account. Provide your storage account credentials to the application in the form of a connection string.
ERB templates combine plain text with Ruby code for variable substitution and flow control, making them easy to write and maintain. Although ERB is most commonly seen generating Web pages, it is also used to produce XML documents, RSS feeds, source code, and other forms of structured text file.
Writing an application in pure Ruby. By the end of this article we will have our own mini-framework similar to Rails: with MVC, routing, migrations, some configs, all in all, everything like it's supposed to be (or purposed, whatever you like).
A Simple Client. Here we will write a very simple client program, which will open a connection to a given port and given host. Ruby class TCPSocket provides open function to open such a socket. The TCPSocket.open(hosname, port ) opens a TCP connection to hostname on the port. Once you have a socket open, you can read from it like any IO object.
You Used Ruby to Write WHAT?!. You get the best of both platforms' network libraries, string processing, file handling and design philosophies when you try to make multiple different systems talk.