expectations (editor, what is the filesystem really?, terminal, GitHub app, node, npm install sails, Heroku, customer service, communication etiquette) - Thinking like an engineer (incognito mode and Chrome profiles, screenshot hotkeys, giphy, Chrome dev tools, the REPL, the terminal, the importance of thoroughness, how to think about edge cases, collaboration) - The DOM (HTML+CSS, and how the browser works) - Logic (&&, ||, v-if, v-else, v-for, etc) - HTTP and the internet (how to read API docs, how to use Postman, <ajax-form>, loading spinners, cloud errors vs. client-side form errors)