lukeabela38

let s = String::from("Hello world");

let hello = &s[0..5];
let world = &s[6..11];

lukeabela38

// We first pass a string by refernce 
// indicating we will be returning a value of standard size

fn first_word(s: &String) -> usize {

  // convert our string to bytes
  let bytes = s.as_bytes();

  // when we enumerate, we get both our item, and an index
  // iterate over the bytes, and enumerate

lukeabela38

fn main() {
  let mut s = String::from("hello");
  change(&mut s);
  
}

fn change(mystring: &mut String) {
  mystring.push_str(", world");
}

lukeabela38

fn main () {
  
  let mut s = String::from("hello");
  
  s.push_str(", world"); // appeand a literal to the existing string s
  
  println!("{}", s);
}

lukeabela38

{
  let s = "string";
}

lukeabela38

fn main() {

  // working through a predefined array
  let a = [10, 20, 30, 40, 50];
  
  for element in a {
    println!("The value is {element}");
  }
  
  // generating our own data starting from 1 and ending in 4

lukeabela38

fn main() {

  let mut number = 3;
  
  while number != 0 {
    println!("{number}!");
    
    number -= 1;
  }
  

lukeabela38

fn main() {
  
  // We declare the variable as mutable to be able to change it
  let mut counter = 0;
  
  // We can declare a loop within a variable
  let result = loop {
  
    // increment our mutable value
    counter += 1;

lukeabela38

fn main() {
  let number = 3;
  
  if number < 5 {
    println!("Smaller than 5");
  } else if number > 8 {
    println!("Greater than 8");
  } else {
    println!("Between 5 and 8");
  }

lukeabela38

fn main() {
  
  let x: i32 = 5;
  let y = add_five(x);
  
  println!("The value of y is: {y}");
  
}

fn add_five(a: i32) -> i32 {