Ruby regular expressions (ruby regex for short) help you find specific patterns inside strings, with the intent of extracting data for further processing. Two common use cases for regular expressions include validation & parsing. For example: Think about an email address, with a ruby regex you can define what a valid email address looks like. … Read more
Today you’ll learn how to read & write files in Ruby so you can extract the contents, create new files, and find the information you need! Let’s do this! How to Read Files In Ruby You can read a file in Ruby like this: Open the file, with the open method. Read the file, the … Read more
What’s an array? An array is a built-in Ruby class, which holds a list of zero or more items, and includes methods that help you easily add, access, and loop over all these items. This is helpful, because if arrays didn’t exist you would have to use many variables. Example: a = 1 b = … Read more
Do you want to create custom network clients & servers in Ruby? Or just understand how that works? Then you will have to deal with sockets. Join me on this tour of ruby network programming to learn the basics, and start talking to other servers and clients using Ruby! So what are sockets? Sockets are … Read more
Parsing is the art of making sense of a bunch of strings and converting them into something we can understand. You could use regular expressions, but they are not always suitable for the job. For example, it is common knowledge that parsing HTML with regular expressions is probably not a good idea. In Ruby we have … Read more