JavaScript Course Content
Goal: Understand how the browser executes logic.
- Variables & Scope: Moving from var to let and const. Understanding Global vs. Block scope
- Data Types: Primitives (Strings, Numbers, Booleans) vs. Objects and Arrays
- Logical Control:
- Conditional logic (if, else, switch)
- Truthiness vs. Falsiness: Understanding how JS evaluates non-boolean values
- Functions: Declaration vs. Expression, and the modern Arrow Function (=>)
- Template Literals: Using backticks for dynamic string interpolation
Goal: Make static HTML pages interactive.
- The DOM (Document Object Model): Selecting elements with querySelector and getElementById
- Event Listeners: Handling click, submit, keyup, and "Event Delegation"
- Manipulating the Page: Changing CSS styles, attributes, and inner HTML dynamically
- Web Storage: Storing user preferences with localStorage and sessionStorage
- Timers: setTimeout and setInterval for delayed or repeating actions
Goal: Write cleaner, faster code using modern syntax.
- Destructuring: Pulling data out of Arrays and Objects efficiently
- Spread & Rest Operators: Merging objects and handling variable function arguments
- Higher-Order Functions: Mastering .map(), .filter(), and .reduce() for data transformation
- Classes & OOP: Understanding Prototypes, Classes, and this context
- Modules: Organizing code with import and export
Goal: Fetching data from the web without freezing the UI.
- The Event Loop: Understanding how JS handles concurrency (Call Stack vs. Task Queue)
- Promises: Handling success and failure in asynchronous operations
- Async/Await: The modern, readable way to write asynchronous code
- Fetch API: Consuming REST APIs and handling JSON responses
- Error Handling: Using try...catch for robust applications
Goal: Moving beyond the browser into professional development.
- State Management: Concepts of "Single Source of Truth"
- Node.js Introduction: Running JavaScript on the server side
- Build Tools: Understanding Vite, Webpack, and npm/pnpm package managers
- TypeScript Basics: Adding "Type Safety" to JavaScript to catch bugs early
- Testing: Writing unit tests with Jest or Vitest