shortcuts and combinations for common Git commands

clean up the branch list with this one-liner command-line command

getting some version control on your computer

summarizing the internet's de facto version control system

checking the validity of JavaScript types with this library

launching a React app/website onto a github.io subdomain

starting a React app without create-react-app

storing the current situation of a component

summarizing the famous interface-building JavaScript library

reviewing this calculation-oriented built-in object

reviewing this calendar-oriented built-in object

responding to unsatisfactory data and actions

delaying and repeating events based on time

making changes to the HTML with JavaScript

accessing the HTML via JavaScript

more about JavaScript with the "user agent"

containing chunks of code for later re-use

performing more powerful functions such as transforming and filtering arrays