Examples

This page links and explains the key examples included in the repository under ./examples.

Note: The examples are written in .ds and compiled to .js via dsc build. You can also run a single example directly with dsc examples/<file>.ds.

simple.ds

Basics: variables, default parameters, logging.

let number::num = 3
let mgbool::mbool = maybe

number = 2
inmut number

func Main(x::num = 3) {
  spec.log("types ", x)
}

let newer::num = 4
Main(newer)

complex.ds

Functions, classes, control flow, try/catch/finally.

func Greet(person::str) {
  spec.log("Hola " + person + "!")
  return "greeted " + person
}

func Sum(a::num, b::num) {
  return a + b
}

Greet("Manuel")
spec.log("Suma:", Sum(3,4))

class Counter {
  constructor(initial::num) { this.count::num = initial }
  inc() { this.count = this.count + 1 }
  add(n::num) { this.count = this.count + n }
}

const c::Counter = new Counter(2)
c.inc(); c.add(5)
spec.log("Counter:", c.count)

complexfinal.ds

Interfaces, arrays, loops, and structured logging throughout a larger sample.

interface Person { name::str; age::num; tags::arr<str>; meta::obj }

func processPerson(p::Person) {
  spec.log("Procesando:", p.name)
  return p.name
}

let person::Person = { name: "Luis", age: 28, tags: ["engineer"], meta: {} }
let team::arr<Person> = [person]

spec.log("=== BUCLE FOR ===")
let i::num = 0
for (i = 0; i < 3; i = i + 1) {
  spec.log("Iteración for:", i)
}

Running examples

• Build all: dsc build
• Watch: dsc dev
• Run single: dsc examples/simple.ds
• Force CDN for SpectralLogs: dsc examples/simple.ds --spectral-cdn
• Rewrite console to spec: dsc build --migrate-to-spec