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Translating TypeScript to Rust #1

Translating TypeScript to Rust #1

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Gabriel Rufino
·Jan 15, 2022·

2 min read

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This is the first post of a series of many posts translating TypeScript into Rust language. The idea is pretty simple like this: help those who know TypeScript but it's learning Rust with two code snippets, one in TypeScript and one for Rust.

Remember that every translation is subject to inaccuracies in some cases. Feel free to correct or suggest better translations in the comments

1.1 - Output some text

TypeScript

console.log('Hello, world!')

Rust

println!("Hello, world!");

1.2 - Define a immutable variable

TypeScript

const PI = 3.1415

Rust

let PI = 3.1415;

1.3 - Define a mutable variable

TypeScript

let count = 0

Rust

let mut count = 0;

1.4 - Define variables with types

TypeScript

const n: number = 10
const f: number = 7.456
const s: string = 'Gabriel Rufino'
const b: boolean = true

Rust

let n1: i8 = 10;
let n2: i16 = -20;
let n3: i32 = 30;
let n4: i64 = -40;

let n5: u8 = 10;
let n6: u16 = 20;
let n7: u32 = 30;
let n8: u64 = 40;

let f1: f32 = 3.14;
let f2: f64 = 3.1415;

let s: String = String::from("Gabriel Rufino");

let b: bool = true;

1.5 - Define a sum function

TypeScript

function sum (x: number, y: number): number {
  return x + y;
}

Rust

fn sum(x: i32, y: i32) -> i32 {
  x + y
}

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