V is a programming language created in 2019 by Alexander Medvednikov.
#126on PLDB | 5Years Old | 1kRepos |
git clone https://github.com/vlang/v
Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io
import json
struct User {
name string
age int
mut:
is_registered bool
}
fn main() {
s := '[{"name":"Frodo", "age":25}, {"name":"Bobby", "age":10}]'
mut users := json.decode([]User, s) or {
eprintln('Failed to parse json')
return
}
for user in users {
println('$user.name: $user.age')
}
println('')
for i, mut user in users {
println('$i) $user.name')
if !user.can_register() {
println('Cannot register $user.name, they are too young')
continue
}
// `user` is declared as `mut` in the for loop,
// modifying it will modify the array
user.register()
}
// Let's encode users again just for fun
println('')
println(json.encode(users))
}
fn (u User) can_register() bool {
return u.age >= 16
}
fn (mut u User) register() {
u.is_registered = true
}
fn main() {
println('Hello, world!')
}
println("Hello World")
Feature | Supported | Example | Token |
---|---|---|---|
Print() Debugging | ✓ | println | |
Comments | ✓ | // A comment | |
Line Comments | ✓ | // A comment | // |
Strings | ✓ | "hello world" | " |
Semantic Indentation | X |