Mala

A simple dynamic programming language inspired by Lua and JavaScript. Interpreted through a stack-based VM.

Truthy/Falsy Values

Value	Is Truthy?
true	yes (duh)
false	no (also duh)
any number value	yes
null	no
strings	yes, even empty ones

Basic Syntax

Please note not all these features are implemented and not guaranteed to be implemented. This file is only serving as a guideline for me.

Variables

let x = 5 // number
let y = .5 // number
let list = ["foo", "bar"]

log(list[0]) // "foo"
log(list[#list]) // "bar"

const str = "Hello, World!" // constant string
str = "Goodbye, World!" // errors

Functions

// regular functions
func inc(a) {
  return a + 1
}

// lambda functions
let lamdaInc = lamda x -> x + 1

inc(1) // 2
lambda_inc(1) // 2

Conditionals

// if statements
if (1 == 2) {  // parenthesis enclosing expression are OPTIONAL

}

if (true and true) {

}

if (true or false) {

}

if (not false) {

}

Loops

// numerical loops
// for VAR in [START..END], STEP = 1
for let i in [1..5, 1] {
  log(i) // prints 1 to 5, both inclusive
}

// key-value loops
let LIST = ["a", "b", "c"]

// for VAR [K, V?] of LIST
for let [K, V] of LIST {
  log(K, V) // prints index and value of each element
}