JavaScript — an introduction

JavaScript, as an internet programming language, allows webpages to:

• changes its content and/or appearance
  • based on user input, or
  • some changing condition

As we will see, the JavaScript programming language contains many elements that we can find in any other programming language. After all, a programming language must contain certain features (e.g. variables, branching, looping, etc.) to be considered a programming language!

Still, JavaScript contains some features that make it one of the best languages for writing programs for an Internet setting. We may also find JavaScript used in non-browser settings, and maybe even in some non-Internet programs.

Topics

• Setup
  • 📒🛡️ JavaScript in HTML
  • 📒💬 Comments and whitespace
  • 📒🤖 Browser console
• JavaScript programming basics
  • 📒🗄️ Data types
    • ✏️ Strings
    • 🧮 Numbers
  • Variables
  • Operators
  • Branching
  • Looping
  • Functions
  • Scope
  • Objects
  • Arrays
  • Higher-order functions
  • Modules
  • Event handling
  • Delays
  • Error handling
  • Built-in objects
  • Built-in functions
• Javascript and the Internet
  • DOM access
  • DOM traversal
  • DOM manipulation
  • Global objects
• Javascript and external data manipulation
  • JSON
  • Fetch
• Advanced topics
  • Escape strings
  • String interpolation
  • ASCII
  • Ternary operators
  • Nullish coalescing
  • Destructuring
  • Recursion
  • Currying
• Optional topics
  • How JavaScript works
  • Console styling