Leo Romanovsky leoromanovsky

Programming Achievements: How to Level Up as a Developer

This gist is part of a blog post. Check it out at:

http://jasonrudolph.com/blog/2011/08/09/programming-achievements-how-to-level-up-as-a-developer

Node.js on Apple Silicon

Node Version Manager (https://github.com/nvm-sh/nvm) works perfectly across native node installations as well as emulated Rosetta installations. The trick I am using here is to install one LTS version of node under Rosetta and another stable version as native binary.

TODO

find a way how to run the same node version on both platforms

	#Deploy and rollback on Heroku in staging and production

	namespace :deploy do
	PRODUCTION_APP = 'YOUR_PRODUCTION_APP_NAME_ON_HEROKU'
	STAGING_APP = 'YOUR_STAGING_APP_NAME_ON_HEROKU'

	task :staging_migrations => [:set_staging_app, :push, :off, :migrate, :restart, :on, :tag]
	task :staging_rollback => [:set_staging_app, :off, :push_previous, :restart, :on]

	task :production_migrations => [:set_production_app, :push, :off, :migrate, :restart, :on, :tag]

	#!/usr/bin/perl -w
	##############################################################################
	##
	## Written by: Jared Cheney <[email protected]>
	##
	## Original Template written by:
	## Brandon Zehm <[email protected]> and Jared Cheney <[email protected]>
	##
	## License:
	##

	#content
	= spinner_tag()

	:javascript
	jQuery.ready(function() {
	var pageView = new PageView();
	pageView.render()
	});

	val persons = Seq(
	Person(2000, 2010),
	Person(2000, 2005),
	Person(1990, 2005)
	)

	// Create an array of population change.
	val births = persons.groupBy(_.birthYear).mapValues(_.length)
	val deaths = persons.groupBy(_.deathYear).mapValues(_.length)
	val populationChanges = (births.keySet ++ deaths.keySet).map { year =>

	persons.flatMap(p => Seq((p.birthYear, 1), (p.deathYear, -1)))
	.sorted
	.foldLeft((0,0,0)){case ((mxYear,mxPop,curPop), (thisYear,dif)) =>
	if (curPop+dif > mxPop) (thisYear, curPop+dif, curPop+dif)
	else (mxYear, mxPop, curPop+dif)
	}._1 //res0: Int = 2000