Viktor Lazarev gentoid

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

Destructuring(or pattern matching) is a way used to extract data from a data structure(tuple, list, record) that mirros the construction. Compare to other languages, Elm support much less destructuring but let's see what it got !

Tuple

myTuple = ("A", "B", "C")
myNestedTuple = ("A", "B", "C", ("X", "Y", "Z"))

let
  (a,b,c) = myTuple

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Element

Box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
elem.clientLeft, elem.clientTop, elem.clientWidth, elem.clientHeight
elem.getClientRects(), elem.getBoundingClientRect()

	mod time_diff;

	use time_diff::TimeDiff;

	fn main() {
	let td = TimeDiff::new(1234123);
	let td2 = TimeDiff::new(1233);
	println!("First diff is {}", td);
	println!("Second diff is {}", td2);
	println!("Sum of that diffs is {}", td + td2);

	$.ajaxSetup({
	beforeSend: function(xhr, settings) {
	if (settings.type == 'POST' \|\| settings.type == 'PUT' \|\| settings.type == 'DELETE') {
	function getCookie(name) {
	var cookieValue = null;
	if (document.cookie && document.cookie != '') {
	var cookies = document.cookie.split(';');
	for (var i = 0; i < cookies.length; i++) {
	var cookie = jQuery.trim(cookies[i]);
	// Does this cookie string begin with the name we want?

	body {
	font-size: 5vw;
	}
	@media (max-width: 700px) {
	body {
	font-size: 35px;
	}
	}
	@media (min-width: 3000px) {
	body {

	# 1. trigger events
	$(document).trigger 'flash:message', { level: 'error', message: 'There was an error' }

	# 2. catch events in another place
	$(document)
	.on 'flash:message', (e, params) =>
	if params.level && params.message
	@show params.level, params.message # call 'show' method doing something interesting :-)

	# English translations for Retina package.
	# Copyright (C) 2015 THE PACKAGE'S COPYRIGHT HOLDER
	# This file is distributed under the same license as the Retina package.
	# FIRST AUTHOR <EMAIL@ADDRESS>, 2015.
	#
	msgid ""
	msgstr ""
	"Project-Id-Version: Retina 0.33.2-26-g8a4bb2a\n"
	"Report-Msgid-Bugs-To: \n"
	"POT-Creation-Date: 2015-06-01 16:37+0400\n"

	{
	"presets": [
	"@babel/preset-env",
	"@babel/preset-react"
	]
	}