Let’s talk about Rails parameters! Why are they useful? Users can send data to your web application in three different ways. These three ways are: Using a query parameter (“example.com/?q=bacon”) Submitting a form (“/users/sign_in”) Within the URL itself (“/books/1”) How do you access this data from Rails? With params. Inside your controller action’s you can … Read more
How can strings of characters exist in a world where computers only understand ones & zeros? Well… Just like we can map a domain name to an IP address. Or a barcode to a specific product. We can… Map numbers to characters! Like 97 to “a”. Or 122 to “z”. That’s exactly how we can … Read more
I want to answer one simple question… What is FFI in Ruby? FFI stands for “Foreign Function Interface”. It’s a way to use functions defined in other programming languages. Ruby’s FFI module gives you access to external libraries & code that you wouldn’t have otherwise. We often use this to work with C code. Examples … Read more
Rails link_to method! One of the most common helper methods you’ll use in all your Rails applications. But how does it work? If you came here to learn about link_to & the different options you can use with it then you’re in the right place! First… What does link_to do? Well, this whole website thing … Read more
Creating a temporary file gives you an empty file with a random name inside your O.S. (Operating System) temporary folder. This file gets deleted automatically. How can you do this in Ruby? Like this: require ‘tempfile’ Tempfile.create { |f| f << “abc\n” } Where f is your file & << writes to it. This is … Read more