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rust import module

Quantum answered on March 7, 2023 Popularity 9/10 Helpfulness 1/10

answer rust import module

rust import module

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// In rust there's no requirement to import, you can directly access a module on the fly like accessing a global object
// For example
let prod = std::env::var("PROD");

// But of course we probably don't want to repeatedly type out long names
// So we use `use`

// To use std::env::var() as var();
use std::env::var;
let prod = var("PROD");

// You can rename imports to something else locally
use std::env::var as envvar;
let prod = envvar("PROD");

// To import everything directly under a certain path, use ::* at the end
use std::fs::*;
let mut foo = File::open("foobar.txt")?; // File from std::fs::File

// You can import many things from the same root path
use std::{
	env::Args,
	thread::{
    	sleep,
        spawn,
    },
    net::{
    	Ipv4Addr as ipv4,
        TcpListener as listener,
        TcpStream,
    },
}

Popularity 9/10 Helpfulness 1/10 Language rust

Source: Grepper

Tags: import-module rust whatever

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Contributed on Mar 07 2023

Quantum

0 Answers Avg Quality 2/10

rust import module

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