Vitalii Elenhaupt veelenga

Word

Create db dump:

mysqldump -u user -p db_name > db_name.sql

Restore db dump:

mysql -u user -p db_name < db_name.sql

	class FlashMessages extends React.Component {

	constructor(props) {
	super(props);
	this.state = { messages: props.messages };
	}

	render () {
	return(
	<div>

	# equal jsons
	json1 = '{"polygons":[{"type":"rectangle","vertices":[{"x":1621.5,"y":1079.5},{"x":2674,"y":1079.5},{"x":2674,"y":2528},{"x":1621.5,"y":2528}],"category":"name"}]}'
	json2 = '{"polygons":[{"type":"rectangle","category":"name","vertices":[{"x":1621.5,"y":1079.5},{"x":2674,"y":1079.5},{"x":2674,"y":2528},{"x":1621.5,"y":2528}]}]}'

	rez1 = JSON.parse(json1)
	rez2 = JSON.parse(json2)

	rez1 == rez2 # true

	def flatten(list), do: flatten(list, []) \|> Enum.reverse
	def flatten([h \| t], acc) when h == [], do: flatten(t, acc)
	def flatten([h \| t], acc) when is_list(h), do: flatten(t, flatten(h, acc))
	def flatten([h \| t], acc), do: flatten(t, [h \| acc])
	def flatten([], acc), do: acc

	##############################
	##Exercise: ModulesAndFunctions-6
	defmodule Chop do
	def guess(actual, lo..hi) when (lo <= hi) and (actual in lo..hi) do
	current = guessing(lo, hi)
	IO.puts "Is it #{current}"
	guess(current, actual, lo..hi)
	end

	defp guess(value, actual, _) when value == actual, do: IO.puts value

	class String
	def leftpad(len : Int, char = ' ')
	char, len = char.to_s, len - self.size

	raise ArgumentError.new if char.size != 1

	len > 0 ? (char * len + self) : self
	end
	end

	# create dump of the database on remote server
	$ mongodump --host remote_host --db database_name

	# import into database on localhost
	$ mongorestore --host localhost --dir dump/database_name/ --db database_name --drop