Gain insights into building applications using Rails Webpacker, Webpack, and TypeScript. Explore Stimulus, React, state management, and communication with servers for richer interactions.

railspostgresssl.tar.gz

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In this course, you will learn to build a fully-functional application with Rails Webpacker, Webpack, and TypeScript.

To kick things off, you’ll walk through the basics of getting Rails set up to use Webpacker which will serve JavaScript and CSS to the browser. You’ll then get acquainted with Stimulus and React which will help with creating richer interactions.

In the latter half, you’ll work with TypeScript and set up communication between a server. Beyond that, you’ll work through managing state in your Stimulus code, as well as how to test and troubleshoot your application.

By the end of this course, you will be well equipped to create larger, more complex applications that make use of modern tools.

Modern Front-end Development for Rails



Cypress has a few ways to let you see what's going on during testing. First off, each step in a test produces a snapshot that you can look at in the test runner and also inspect via the browser console that you are using. You can also trigger a screenshot to the `cypress/screenshots` directory by using the `screenshot` command.

You can send an arbitrary message to the browser console log with `cy.log("message")`, and you can have Cypress log the result of any chain of message by placing `debug()` at the end of the chain. In the next chapter, I go into the specifics of using the Cypress test runner to debug Cypress tests.

## What's next?

In this chapter, we installed Cypress, wrote our first test, and toured the Cypress commands. Next, we'll write more complex Cypress tests to cover the rest of our application functionality and talk more about general troubleshooting of our application.



Cypress has a few ways to let you see what's going on during testing. First off, each step in a test produces a snapshot that you can look at in the test runner and also inspect via the browser console that you are using. You can also trigger a screenshot to the `cypress/screenshots` directory by using the `screenshot` command.

You can send an arbitrary message to the browser console log with `cy.log("message")`, and you can have Cypress log the result of any chain of message by placing `debug()` at the end of the chain. In the next chapter, I go into the specifics of using the Cypress test runner to debug Cypress tests.

# What's next?

In this chapter, we installed Cypress, wrote our first test, and toured the Cypress commands. Next, we'll write more complex Cypress tests to cover the rest of our application functionality and talk more about general troubleshooting of our application.

Learn about troubleshooting Cypress in this lesson.

Troubleshooting

Getting Started

Client-side Rails

Stimulus

React

Book Review System Using ReactJS and Ruby on Rails

Cascading Style Sheets

TypeScript

Webpack

Webpacker

Talking to the Server

Managing State in Stimulus Code

Managing State in React

Using Redux to Manage State

Validating Code with Advanced TypeScript

Testing with Cypress

More Testing and Troubleshooting Basics

Appendix

Troubleshooting