Go vs Rust - Variable and Constant

 1 Go

Variable

var myvariable1, myvariable2, myvariable3 = 2, "GFG", 67.56
var i, j = os.Open(name)

Using short variable declaration

myvar1, myvar2, myvar3 := 800, "Geeks", 47.56
i, j := os.Open(name)

Constant

const PI = 3.14

2 Rust

Variable

let x = 5; // Can’t change that value. 
let mut x = 5;

Constant

const THREE_HOURS_IN_SECONDS: u32 = 60 * 60 * 3;

• Use var or short variable declaration define variables in Go.
• By default variables are immutable in Rust.
• Both use const to define constant.
• Constants must be explicitly typed in Rust.