V (programming language)

V

The official V logo
Paradigms	Multi-paradigm: functional, imperative, structured, concurrent
Designed by	Alexander Medvednikov
Stable release	0.4.12  / September 19, 2025 (September 19, 2025)
Typing discipline	static, strong, infered
Implementation language	V
Platform	x86-64
OS	Linux, macOS, Windows, FreeBSD, OpenBSD, NetBSD, DragonflyBSD, Solaris
License	MIT
Filename extensions	.v, .vsh
Website	vlang.io
Influenced by
Go, Kotlin, Oberon, Python, Rust, Swift

V, also known as vlang, is a statically typed compiled programming language designed for ease of use, readability, and maintainability. It was created by Alexander Medvednikov in 2019.

Examples

Here is a hello world program in V.

fn main() {
	println('Hello, World!')
}

Here is an example of how to declare a variable.

• Variables are immutable by default.
• Define by using := and a value.
• Use the mut keyword to make them mutable.
• Mutable variables can be assigned to using =.

a := 1
mut b := 2
b = 3

Here is an example of using `if`, `else if` and `else` conditionals in V.

fn main() {
	a := 10
	b := 20
	if a < b {
		println('${a} < ${b}')
	} else if a > b {
		println('${a} > ${b}')
	} else {
		println('${a} == ${b}')
	}
}

Here is an example of using loops in V.

// Define entry point.
fn main() {
    mut count := 0

    // Here is a condition `for` loop (also known as a `while` loop).
    for count < 5 {
        // some code
        count++
        println(count)
    }

    // Here is a range `for` loop.
    for i in 1..10 {
        println("${i}") // Prints numbers from 1 up to 9.
    }
    
    // Here is a map `for` loop.
	m := {
	'one': 1
	'two': 2
	}
	for key, value in m {
	println('${key} -> ${value}')
	// Output: one -> 1
	//         two -> 2
	}
}