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Python Set Operations Explained: From Theory to Real-Time Applications

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A  set  in Python is an unordered collection of unique elements. It is useful when storing distinct values and performing operations like union, intersection, or difference. Real-Time Example: Removing Duplicate Customer Emails in a Marketing Campaign Imagine you are working on an email marketing campaign for your company. You have a list of customer emails, but some are duplicated. Using a set , you can remove duplicates efficiently before sending emails. Code Example: # List of customer emails (some duplicates) customer_emails = [ "alice@example.com" , "bob@example.com" , "charlie@example.com" , "alice@example.com" , "david@example.com" , "bob@example.com" ] # Convert list to a set to remove duplicates unique_emails = set (customer_emails) # Convert back to a list (if needed) unique_email_list = list (unique_emails) # Print the unique emails print ( "Unique customer emails:" , unique_email_list) Ou...
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Ruby on Rails: How to Create Web Application

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You’ve probably already used many of the applications that were built with Ruby on Rails: Basecamp, GitHub,Shopify, Airbnb, Twitch, SoundCloud,Hulu, Zendesk, Square, Highrise. Those are just some of the big names, but there are literally hundreds of thousands of applications built with the framework since its release in 2004.


Ruby on Rails is open source software, so not only is it free to use, you can also help make it better. More than 4,200 people already have contributed code to Rails. It’s easier than you think to become one of them.

Optimizing for programmer happiness with convention over configuration is how we roll. Ruby on rails has been popularizing both concepts along with a variety of other controversial points since the beginning.


To learn more about why rails is so different from many other web-application frameworks and paradigms, examine the rails doctrine rails is a web application development framework written in the ruby language. 

It allows you to write less code while accomplishing more than many other languages and frameworks.


It is designed to make programming web applications easier by making assumptions about what every developer needs to get started. How to create ruby on rails sample application: click here

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