Back-End Programming Exam > Back-End Programming Videos > Introduction to Coding with Ruby (in Hindi) > Ruby Programming Tutorial-11-Blocks
Ruby Programming Tutorial-11-Blocks Video Lecture | Introduction to Coding with Ruby (in Hindi) - Back-End Programming
FAQs on Ruby Programming Tutorial-11-Blocks Video Lecture - Introduction to Coding with Ruby (in Hindi) - Back-End Programming
| 1. What is a block in Ruby programming? |  |
Ans. A block in Ruby programming is a piece of code that can be passed as an argument to a method. It is a way to group multiple statements together and execute them in a specific context. Blocks are often used for iteration or to define callbacks.
| 2. How do you define a block in Ruby? | |
Ans. In Ruby, a block can be defined using curly braces ({}) or the do...end keywords. For example:
```
5.times { puts "Hello!" }
or
5.times do
puts "Hello!"
end
```
Both of these examples define a block that will execute the code inside the curly braces or between the do...end keywords.
| 3. Can a block be assigned to a variable in Ruby? | |
Ans. No, a block cannot be assigned to a variable in Ruby. Blocks are not objects, so they cannot be stored in variables. However, blocks can be passed as arguments to methods, which allows for their reuse and flexibility.
| 4. How are blocks different from methods in Ruby? | |
Ans. Blocks and methods in Ruby are similar in that they both group code together. However, there are a few key differences:
- Blocks are not objects, while methods are.
- Blocks are defined inline, while methods are defined separately.
- Blocks cannot be assigned to variables, while methods can.
- Blocks have a more limited scope than methods.
| 5. What is the purpose of back-end programming in Ruby? | |
Ans. Back-end programming in Ruby involves writing code that runs on the server-side of a web application. It typically involves handling data, processing requests, and interacting with databases. The purpose of back-end programming is to handle the logic and functionality that allows a web application to function, while the front-end programming focuses on the user interface and presentation of the application.
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Nov 22, 2024 Last updated |
Video Description: Ruby Programming Tutorial-11-Blocks for Back-End Programming 2024 is part of Introduction to Coding with Ruby (in Hindi) preparation.
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Introduction of Ruby Programming Tutorial-11-Blocks in English is available as part of our Introduction to Coding with Ruby (in Hindi) for Back-End Programming & Ruby Programming Tutorial-11-Blocks in
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