Introduction to JavaScript!

JavaScript is a programming language that gives interaction to a webapp used on both the server-side and client-side to create engaging website elements, fully featured web applications, CLI applications and even web servers.

JavaScript is used for interactivity and logic

Variables: placeholder for values

How to declare variables in JavaScript.

1. var: The var keyword is used to declare a variable that can be reassigned.
2. let: The let keyword is used to declare a block-scoped variable that can be reassigned.
3. const: The const keyword is used to declare a block-scoped constant that cannot be reassigned

Declare a variable and
Initialize a variable, you can declare a variable without initializing it that moment..

JavaScript Data types

1. String: is represented with a single or double quote( ' ' or " ")
2. Numbers: Floats or integers
3. Arrays: Related data types and is represented with a square bracket ( [ ] ) we use it to store relative data
4. Object: They are used to create or give meanings to an entity.

Heap and stack are made up of Random access memory;

1. Heap: This is a structured data that can grow dynamically overtime and can be slower due to manual memory management and potential fragmentation.

2. Stack: Typically has a limited size, generally faster due to automatic memory management.

JavaScript is extremely versatile.