Collections

let numbers = [1, 2, 3, 4, 5]
let names = ["Alice", "Bob", "Charlie"]
let mixed = [1, "hello", true]  # Type inferred

let items = [1, 2, 3]

# Access by index
let first = items[0]      # 1
let last = items[2]       # 3

# Length (coming soon)
let len = items.length()  # 3

# Iteration
for item in items {
  print(item)
}

# Coming soon
let list = [1, 2, 3]
list.append(4)        # [1, 2, 3, 4]
list.prepend(0)      # [0, 1, 2, 3, 4]
list.remove(2)      # Remove value 2
list.pop()           # Remove and return last

let person = {
  "name": "JOEL",
  "age": 24,
  "active": true
}

let scores = {
  "Alice": 95,
  "Bob": 87,
  "Charlie": 92
}

let person = {"name": "JOEL", "age": 24}

# Access values
let name = person["name"]  # "JOEL"

# Add/Update
person["city"] = "NYC"
person["age"] = 25

# Check if key exists (coming soon)
if person.has("name") {
  print("Has name")
}

let person = {"name": "JOEL", "age": 24}

# Coming soon
for key, value in person {
  print(key, "=", value)
}

let matrix = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]
]

let first_row = matrix[0]  # [1, 2, 3]
let value = matrix[0][1]  # 2

let user = {
  "name": "Alice",
  "tags": ["developer", "rust", "ai"]
}

let tags = user["tags"]  # ["developer", "rust", "ai"]
let first_tag = tags[0]  # "developer"

let users = [
  {"name": "Alice", "age": 25},
  {"name": "Bob", "age": 30},
  {"name": "Charlie", "age": 28}
]

let first_user = users[0]  # {"name": "Alice", "age": 25}
let name = first_user["name"]  # "Alice"

# Coming soon
let squares = [x * x for x in range(1, 6)]  # [1, 4, 9, 16, 25]

let evens = [x for x in range(0, 10) if x % 2 == 0]  # [0, 2, 4, 6, 8]

fn sum_list(numbers: list[i32]) -> i32 {
  let total = 0
  for num in numbers {
    total = total + num
  }
  return total
}

fn main() {
  let nums = [10, 20, 30, 40, 50]
  print("Sum:", sum_list(nums))  # 150
}

main()

fn get_user_info(user: map[str, str]) -> str {
  let name = user["name"]
  let email = user["email"]
  return name + " <" + email + ">"
}

fn main() {
  let user = {
    "name": "JOEL",
    "email": "joel@example.com"
  }
  print(get_user_info(user))
}

main()