The order says paid, and the payment provider shows a completed transaction. Yet the bank deposit is smaller than the invoice. Someone has to explain the difference. This gives you a starting point for a Ruby on Rails project: a…
A scraper that worked on Friday and fails on Monday may have nothing wrong with its parser. The page might now be a login form, the proxy credentials could have expired, or the server could be asking the client to…
Build two small programs with one clear contract: Ruby exports a reading list and Swift decodes, validates and totals it.
Follow an order-summary program from data to output, then test empty input, incorrect types and missing keys.
Campaign spreadsheets get messy very fast. One person tracks followers, another tracks video views, and somebody else has the monthly service charge tucked away in a column. All of it relates to the same campaign, although the figures need different…
Choose a practical Ruby project by its inputs, output and failure rules, from a cleanup script to a shared web application.
Separate Ruby, Rails, IRB and RubyGems, then use a reading-goal program to see how Ruby calculates values and makes decisions.
GitHub, Shopify and Airbnb turn up in almost every list of websites made with Ruby. Familiar names are useful, but they only answer part of the question. How many sites use Ruby, and what does it mean when a crawler…
Trace Ruby's origins, early public release and Ruby 2.0 milestone, then explore the design through a short modern example.
A Rails feature rarely stops with the Ruby code. A booking form needs a usable layout, a controller needs tests, and a slow dashboard may need its database queries reviewed. AI tools can help with these jobs, though each calls…