Rust

• developed by Firefox

• open source

• 2 ways to deploy rust code

  • cargo (kinda npm)
  • native rust compiler

• for creating new project run this cmd

  • cargo new project name

• using variables in console print

  • println!("Hello, world! Back to rust again ;) {} {}", var1, var2);
  • unsigned - can't be negative
  • signed - can be negative
  • the type i8 whose range is -128..=127
  • the type u8 whose range is 0..=255
  • data types

• Arrays

  • array
  • slice (mostly slices are passed from frontend)
  • Slices are similar to arrays, but their length is not known at compile time.
  • Instead, a slice is a two-word object; the first word is a pointer to the data,
  • the second word is the length of the slice. The word size is the same as usize, determined by the processor architecture,
  • e.g. 64 bits on an x86-64.

• functions

  • all funcs are private by default

• Mutability

  • vars are immutable by default
  • for making it mutable use mut keyword

• Strings

  • string.push, push_str
  • string.replace

• If statements

• loops

  • for i in 0..6 { println!("test"); }
  • while loop
  • let mut i = 0; while i < 4 {i++}
  • break/continue

• Match statements

  • kinda switch in other langs
  • match i

• Struct

• Traits

  • Rust don't support inheritance! However it only supports interfaces

• ENUM

• Vector

• Hash Map

• Options

• Results

Rust for ETH

• RETH Client
• Ethers RS