02_basics.md

Basic Syntax

Variables and Data

In Ry we use the data keyword to define information. It's clear, direct, and tells the VM exactly what it's dealing with.

data name = "John Smith"
data age = 20

You can use the alias keyword to create shorcuts for existing types or valus, keeping your code organized.

Logic: The Unless and Until Advantage

Ry is designed to read like a sectence. Instead of a messy !(NOT) operators everywhere, we use unless and do-until.

The unless Keyword: unless is the opposite of if. It runs the code only if the condition is false.

data battery_low = false
unless battery_low {
  out("Keep coding!")
}

The do-until keyword do-until is the opposite of while. It runs the code until the condition is true.

data progress = 0
do {
  ++progress
  out(progress)
} until progress == 100

Loops: foreach and while

Ry makes counting, iterating and looping simple. You don't need simple C-style loops for basic tasks.

The foreach loop

foreach is a loop used for iterating variables. It runs the code until it goes beyond the variables length.

Couting with to

foreach data i in 0 to 10 {
  out(i)
}

Iterating with in

data projects = ["Ry2", "Ryder"]
foreach data project in projects {
  out("Working on ${project}")
}

The while loop

while is a loop that runs until the condition is false.

data isRunning = true
while isRunning {
  data name = input("Say your Name or type exit: ")
  if name == "exit" {
    isRunning = false
  } else {
    out("Hello ${name}")
  }
}

Error Catching

Ry uses attempt and fail to catch errors instead of the default try and catch.

attempt {
  panic "help" # This code will not run
} fail err {
  out("Caught Error: ${err}")
}

Functions

Ry uses the func keyword to create functions. Functions help organize code by putting them into blocks and calling them later.

func greet(data name) {
  out("Hello ${name}")
}
greet("Ryzon")
# Prints: Hello Ryzon

Previous | Next