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Rich Already Answered That!

A list of commonly asked questions, design decisions, reasons why Clojure is the way it is as they were answered directly by Rich (even when from many years ago, those answers are pretty much valid today!). Feel free to point friends and colleagues here next time they ask (again). Answers are pasted verbatim (I've made small adjustments for readibility, but never changed a sentence) from mailing lists, articles, chats.

How to use:

The link in the table of content jumps at the copy of the answer on this page.
The link on the answer itself points back at the original post.

Table of Content

Edit: This list is now maintained in the rust-anthology repo.

Introduction
Ownership
- Where Rust Really Shines
- Rust Means Never Having to Close a Socket
The Problem with Single-threaded Shared Mutability

const std = @import("std");
const warn = std.debug.warn;
const allocator = std.debug.global_allocator;

pub fn main() !void {
    const args = try std.os.argsAlloc(allocator);
    defer std.os.argsFree(allocator, args);

 warn("total args: {}\n", args.len);

Message components

This gist shows you how to use message components in discord.py 2.0

This assumes that you know how Object Orientated Programming in Python works, if you don't know what this is then I recommend that you read this guide.

Installing

You'll need to install discord.py from git to use this (if you don't have git then google how to install it for your OS, I can't be bothered to put it in here...), if you already have this then you can skip to the next section. However if you don't please read the below

Big-O Time Complexities for Elixir data structures

Map [1]

Operation	Time Complexity
Access	`O(log n)`
Search	`O(log n)`
Insertion	`O(n)` for <= 32 elements, `O(log n)` for > 32 elements [2]
Deletion	`O(n)` for <= 32 elements, `O(log n)` for > 32 elements

	package opaque

	type internalBasicType int

	//
	// Prevents the interface to be implemented
	// outside the package, since is lowerCase (thus private).
	//
	// This is best suited for API and things we don't
	// wanna people to override.

	func openbrowser(url string) {
	var err error

	switch runtime.GOOS {
	case "linux":
	err = exec.Command("xdg-open", url).Start()
	case "windows":
	err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
	case "darwin":
	err = exec.Command("open", url).Start()

	// List of language tags according to RFC 5646.
	// See <http://tools.ietf.org/html/rfc5646> for info on how to parse
	// these language tags. Some duplicates have been removed.
	var RFC5646_LANGUAGE_TAGS = {
	'af': 'Afrikaans',
	'af-ZA': 'Afrikaans (South Africa)',
	'ar': 'Arabic',
	'ar-AE': 'Arabic (U.A.E.)',
	'ar-BH': 'Arabic (Bahrain)',
	'ar-DZ': 'Arabic (Algeria)',

	defmodule MyApp do
	use Application

	def start(_type, _args) do
	import Supervisor.Spec, warn: false

	children = [
	Plug.Adapters.Cowboy.child_spec(:http, MyApp.Router, [], [
	dispatch: dispatch
	])


	defmodule Monoid do
	defmacro __using__(_opts) do
	quote do
	def concat([head\|tail]) do
	append(head, concat(tail))
	end

	def concat([]) do
	empty