Also, you can use an IDE or code editor (e.g. It requires ruby-debug-ide to be installed on your system.įor Ruby (including Rails) applications, some ways to debug are: Using inspecting gems (such as Byebug, Pry, Better Errors, and etc.) Using screen prints (e.g.
Press f1, type ext install then search for ruby OR go to ‘View’ > ‘Extensions’ and search for ruby and hit install. vscode folder with a launch.json file in your current directory. In vscode, open the debugging tab and click on the dropdown, then choose the Add configuration option. If you don’t have it yet, install the Ruby extension and reload the editor. Debug Ruby on Rails vscodeĬreate a launch.json file. The Ruby gets method reads input provided by the user, and can reprint their input elsewhere in the program. There are plenty of ways to print output to the console with Ruby – the puts and print methods, for instance – but how does one print user input read from the console? One method in particular is the gets method. Using the console lets you interact with parts of your app directly from a command-line interface without going through a browser. It’s like a back door to your application. This is a good way of tracking the values of a variable while the execution goes on.Īs a Rails developer, you’ll end up spending a lot of time in the Rails console. You can use also display to start watching variables. The commands p (print) and pp (pretty print) can be used to evaluate Ruby expressions and display the value of variables to the console. Pry example: >Movie.firstMovieLoad(0.3ms)SELECT"movies". You will be redirected to pry console, where output will use pry formatting. Then simply type pryin rails console: > pry. You can actually take a look at the console code in the rails source code.Īnd for table output formatting use hirbor irbtools. Since for printing in an IRB we use puts, we use the same command for printing in a rails console. A rails console is, under the hood, an IRB, so all you can do in IRB you will be able to do in a rails console.
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