maps_and_methods.praia

// ── Maps ──
let person = {name: "Ada", age: 36, lang: "Praia"}
print(person)
print(person.name, "is", person.age)

// Dot assignment
person.email = "ada@example.com"
print(person.email)

// Bracket access with string keys
print(person["lang"])

// ── String methods ──
let msg = "  Hello, World!  "
print(msg.strip())
print(msg.strip().upper())
print(msg.strip().lower())
print("hello world".contains("world"))
print("hello world".replace("world", "praia"))
print("hello world".split(" "))
print("foobar".startsWith("foo"))
print("foobar".endsWith("baz"))

// ── Array methods ──
let nums = [3, 1, 4, 1, 5]
print(nums.contains(4))
print(nums.contains(9))
nums.push(9)
print(nums)
nums.reverse()
print("reversed:", nums)
print(["a", "b", "c"].join(", "))

// ── sys namespace ──
// Write a file, read it back, clean up
sys.write("/tmp/praia_test.txt", "hello from praia!")
let content = sys.read("/tmp/praia_test.txt")
print("file says:", content)
print("exists?", sys.exists("/tmp/praia_test.txt"))
sys.remove("/tmp/praia_test.txt")
print("after remove?", sys.exists("/tmp/praia_test.txt"))

// Run a command
let result = sys.exec("echo 'praia says hi'")
print("exec:", result.stdout)

// ── Utility functions ──
print(type(42), type("hi"), type([1]), type({a: 1}), type(nil))
print(str(42) + " is a string now")
print(num("3.14") * 2)