What is Gem in Ruby Mcq?

What is Gemset in rails Mcq?

What is gemset? a) self-contained bundles of gems. Useful for versioning.

What is RVM in Ruby Mcq?

RVM stands for Ruby Version Manager. … Here, with RVM you can easily install, manage and work with different environments.

What is bundler in rails Mcq?

What is bundler? b) self-contained bundles of gems. Useful for versioning. c) Edit Gemfile, then run ‘bundle install’ or just ‘bundle’.

What is the extension used for saving the Ruby file Mcq?

Explanation: Ruby files must be saved with the extension . rb.

Which of the following is not a function of rails Mcq?

This set of Railway Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Rails – Function and Types”. 1. Which of the following is not a function of rails? Explanation: Cant is provided to the railway track for proper drainage.

Which of the following datatypes are valid in Ruby?

Which of the following datatypes are valid in Ruby? Explanation: Ruby supports all the three (numbers,strings,boolean) data types. 2.

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Which character is giving comment in Ruby Mcq?

Explanation: The hash character (#) is used to give comment in ruby.

Which character is giving comment in Ruby?

Single-Line Comments

The Ruby single-line comment begins with the # character and ends at the end of the line. Any characters from the # character to the end of the line are completely ignored by the Ruby interpreter.

Is Ruby a server side language?

Ruby vs JavaScript Summary

In short, Ruby is an object oriented language typically used for server side development. JavaScript is also object oriented and typically used for client side applications.

What are the technologies used by Ajax Mcq?

20. What are the technologies used by Ajax?

  • XMLHttpRequest.
  • Cascading Style Sheets (CSS)
  • Extensible HTML (XHTML)
  • All of the above.

What environments Does rails have by default *?

Rails ships with a default configuration for the three most common environments that all applications need: test, development, and production.

What is scaffold command?

One of the products of the rails generate scaffold command is a database migration. Migrations are Ruby classes that are designed to make it simple to create and modify database tables. Rails uses rake commands to run migrations, and it’s possible to undo a migration after it’s been applied to your database.

What type of language is Ruby?

Ruby is an interpreted, high-level, general-purpose programming language. It was designed and developed in the mid-1990s by Yukihiro “Matz” Matsumoto in Japan. Ruby is dynamically typed and uses garbage collection and just-in-time compilation.

What does represent Ruby?

The ruby is a lustrous, deep red stone that has accrued special and symbolic meaning through time. Through the ages, the ruby has represented nobility, purity, and passion. From ancient times through the modern-day, rubies have been valued by cultures around the world.

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Does Ruby compile to C?

While ruby is not compiled down to native machine code, it is compiled into a set of bytecode instructions that are interpreted by a virtual machine. … Essentially the instructions put the method name on the stack, and then calls “define_method” a C function that is used by YARV to create a new ruby method.

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