chrisdone

module Printf

%default total

-- Formatting AST.
data Format
  = FInt Format
  | FString Format
  | FOther Char Format
  | FEnd

KodrAus

Profiling performance

Using perf:

$ perf record -g binary
$ perf script | stackcollapse-perf.pl | rust-unmangle | flamegraph.pl > flame.svg

NOTE: See @GabrielMajeri's comments below about the -g option.

Mefistophell

Question: I want to compile my Rust source code for the Windows platform but I use macOS.

Solution:

1. Install target mingw-w64: brew install mingw-w64
2. Add target to rustup: rustup target add x86_64-pc-windows-gnu
3. Create .cargo/config
4. Add the instructions below to .cargo/config

[target.x86_64-pc-windows-gnu]

pajaydev

Object.keys vs for..in vs getOwnPropertyNames vs Object.entries

const language = {
  name: 'JavaScript',
  author: 'Brendan Eich'
};

// Inheriting from another object.
Object.setPrototypeOf(language, {createdAt: "Netscape"});