Marat Khusnetdinov khusnetdinov

Lambda: standard

# Creating a lambda
l = lambda { |name| "Hi #{name}!" }

# Executing the lambda
l.call("foo") # => Hi foo!

Dynamic Dispatch
Dynamic Method
Ghost Methods
Dynamic Proxies
Blank Slate
Kernel Method
Flattening the Scope (aka Nested Lexical Scopes)
Context Probe
Class Eval (not really a 'spell' more just a demonstration of its usage)
Class Macros

Learning Rust

The following is a list of resources for learning Rust as well as tips and tricks for learning the language faster.

Warning

Rust is not C or C++ so the way your accustomed to do things in those languages might not work in Rust. The best way to learn Rust is to embrace its best practices and see where that takes you.

The generally recommended path is to start by reading the books, and doing small coding exercises until the rules around borrow checking become intuitive. Once this happens, then you can expand to more real world projects. If you find yourself struggling hard with the borrow checker, seek help. It very well could be that you're trying to solve your problem in a way that goes against how Rust wants you to work.

	WITH table_scans as (
	SELECT relid,
	tables.idx_scan + tables.seq_scan as all_scans,
	( tables.n_tup_ins + tables.n_tup_upd + tables.n_tup_del ) as writes,
	pg_relation_size(relid) as table_size
	FROM pg_stat_user_tables as tables
	),
	all_writes as (
	SELECT sum(writes) as total_writes
	FROM table_scans

	(defun dotspacemacs/layers ()
	"Configuration Layers declaration.
	You should not put any user code in this function besides modifying the variable
	values."
	(setq-default
	;; Base distribution to use. This is a layer contained in the directory
	;; `+distribution'. For now available distributions are `spacemacs-base'
	;; or `spacemacs'. (default 'spacemacs)
	dotspacemacs-distribution 'spacemacs
	;; Lazy installation of layers (i.e. layers are installed only when a file

	1. Знание основ Ruby, фреймворка Ruby on Rails
	- http://guides.rubyonrails.org/
	- http://rusrails.ru/
	Вопросы:
	1. Чем отличается статическая и динамическая типизации в языках программирования?
	2. Какие виды наследования поддерживаются в Ruby?
	3. Что такое модуль? Какая разница между классом и модулем?
	4. Какие есть уровни контроля доступа к методам для классов и модулей?
	5. Какие есть способы вызова методов в Ruby?
	6. Что означает ключевое слово self?

	---
	# SSH server settings, in line with https://stribika.github.io/2015/01/04/secure-secure-shell.html
	# Before using, change myhosts to your hosts' nickname and myuser to your username (two instances! make sure you replace both or you'll be locked out of ssh!)
	- hosts: myhosts
	become: true
	remote_user: myuser
	tasks:
	# Key exchange, ciphers and MACs
	- lineinfile: dest=/etc/ssh/sshd_config regexp='^KexAlgorithms' line='KexAlgorithms [email protected],diffie-hellman-group-exchange-sha256'

	$ brew install libmagic
	$ brew link libmagic (if the link is already created is going to fail, don't worry about that)
	$ env ARCHFLAGS="-arch x86_64" gem install ruby-filemagic -- --with-magic-include=/usr/local/include --with-magic-lib=/usr/local/lib/