string literals in a program are not unique objects. If you include a string literal within a loop, it evaluates to a new object on each iteration of the loop. Call the freeze method on a string (or on any object) to prevent any future modifications to that object. 字符串是可变的。 ...
Ruby Grape is used to create REST APIs. This micro-framework was released in 2010 and can be used to complement other Ruby frameworks. It provides a domain-specific programming language that can be used for coercing and validating the parameters. Advantages of Grape Microframework Can develop RES...
Use spaces around operators, after commas, colons and semicolons. Whitespace might be (mostly) irrelevant to the Ruby interpreter, but its proper use is the key to writing easily readable code. # badsum=1+2a,b=1,2classFooError<StandardError;end# goodsum=1+2a,b=1,2classFooError<Standard...
On the main branch, run bundle exec rake release to create a git tag for the new version, push commits and tags to origin, and publish .gem file to rubygems.org. Contributing Bug reports and pull requests are welcome on GitHub at https://github.com/unleash/unleash-client-ruby. Be sure...
A long-lived project that still receives updates draperdrapergem/draperHomepageDocumentationSource CodeBug TrackerWiki Draper adds an object-oriented layer of presentation logic to your Rails apps. 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020...
This last category is called aninternal DSL, and it is one of these that we are going to create as an example very soon. But before we get into that, let’s take a look at a few well-known examples of internal DSLs. The route definition syntax in Rails is one of them: ...
Axlsx helps you create beautiful Office Open XML Spreadsheet documents (Excel, Google Spreadsheets, Numbers, LibreOffice) without having to understand the entire ECMA specification. Check out the README for some examples of how easy it is. Best of all, you can validate your xlsx file before ...
Well-designed models are the foundation of any good Rails app. Active Record is the object-relational mapping library that Rails uses to connect your models to your database tables. We don’t yet have a web interface for our app, so instead we see how to create, read, update, and delet...
A simple test of your Ruby OCI8 driver is to query a database containing the demo (HR) schema, with the following command-line Ruby program. Substitute the name of your Oracle database and password in the following command: set oracle_sid=xe ruby -r oci8 -e "OCI8.new('hr', 'password...
to read and create these feeds. %package -n rubygem-typeprof Summary: TypeProf is a type analysis tool for Ruby code based on abstract interpretation Version: %{typeprof_version} License: MIT URL: https://github.com/ruby/typeprof Requires: ruby(release) Requires: ruby(rubygems)...