Monkey lang

Monkey lang is simple langue implemented in TS following "Writing an interpreter in GO" by Thorsten Ball.

Features

• tokenizer
• parser
• evaluator (WiP)
• simple REPL

Getting started

To start the REPL in command line run npm run start

Still work in progress, for now generating tokens and building ast works fine, evaluator not so much

Language overview

Binding values to name

let age = 1;
let name = "Monkey";
let result = 10 * (10 / 2);

Let statement can be also used to bind functions

let add = fn(a, b) { return a + b };

Arrays

let arr = [1, 2, 3, 4];

Hash

let obj = { "name": "Ben", "age": 32 };

Accessing elements

arr[0] // => 1
obj["name"] // => "Ben"

Function calls

add(1, 2);