hello_rust.md

What made me curious about Rust

• This Podcast: Software Engineering Radio Episode 490: Tim McNamara on Rust 2021 Edition
• I learnt from https://doc.rust-lang.org/book/title-page.html

Installation on Linux

• curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
• source $HOME/.cargo/env
• export PATH="$HOME/.cargo/bin:$PATH"

Some points

• ahead-of-time compiled language
• Cargo is Rust’s build system and package manager
  • building your code, downloading the libraries your code depends on, and building those libraries
• packages of code (libraries/dependencies) are referred to as crates

Some commands

• rustc hello_world.rs compiles rust code
• rustfmt hello_world.rs format rust code

Creating a project with cargo

• cargo new hello_cargo --bin
• cd hello_cargo
• cargo build
• cargo run
• cargo check
• cargo build --release
• cargo update fetch the latest SegVer and note down in cargo.lock
• cargo doc --open build doc for ur crates

Some more points

The :: syntax in the ::new line indicates that new is an associated function
of the String type. An associated function is implemented on a type, in this
case String , rather than on a particular instance of a String . Some languages
call this a static method.

Switching from an expect call to a match expression is one way of moving from crashing on an error to handling the error