Variables
let x = 5;
let mut y = 10;
y = 15;
const MAX_POINTS: u32 = 100_000- All variables are immutable by default
- While defining constants we have to specify type and value- here unsigned int of 32 bit
- We can define types for variables
Data Types
tuples - collection of multiple variables of different types array - collection of variables of same types strings are greppable and heap allocated s.push_str appends content to the string as s is defined as mutable