Felipe Kautzmann felipekm

This is a proposal for a lightning talk at the Reactive 2016 conference. If you like this, star the Gist.

Thinking metrics on React applications

In regular websites, it is common to send multiple events to track user clicks. Single Page Applications change the way you look at metrics. This is a talk about a simple pattern we created at Globo.com to manage a metrics layer for http://globoplay.globo.com. The talk will cover how to track user flow using Google Analytics and other services. We solved the challenge of tying metrics and components, keeping information across pages and having global data. Also some React, React Router and React Side Effects concepts like context, higher order components, history state will be covered.

This content moved here: https://exploringjs.com/impatient-js/ch_arrays.html#quickref-arrays

What Hiring Should Look Like

This is definitely not the first time I've written about this topic, but I haven't written formally about it in quite awhile. So I want to revisit why I think technical-position interviewing is so poorly designed, and lay out what I think would be a better process.

I'm just one guy, with a bunch of strong opinions and a bunch of flaws. So take these suggestions with a grain of salt. I'm sure there's a lot of talented, passionate folks with other thoughts, and some are probably a lot more interesting and useful than my own.

But at the same time, I hope you'll set aside the assumptions and status quo of how interviewing is always done. Just because you were hired a certain way, and even if you liked it, doesn't mean that it's a good interview process to repeat.

If you're happy with the way technical interviewing currently works at your company, fine. Just stop, don't read any further. I'm not going to spend any effort trying to convince you otherwise.

	function get(obj, path, def) {
	var fullPath = path
	.replace(/\[/g, '.')
	.replace(/]/g, '')
	.split('.')
	.filter(Boolean);

	return fullPath.every(everyFunc) ? obj : def;

	function everyFunc(step) {

	'use strict';
	const Module = require('module');
	const originalCompile = Module.prototype._compile;

	const nohook = function (content, filename, done) {

	return done(content);
	};

	let currentHook = nohook;

	//Example 1 - Calculate average value of an array (transform array into a single number)
	var scores = [89, 76, 47, 95]
	var initialValue = 0
	var reducer = function (accumulator, item) {
	return accumulator + item
	}
	var total = scores.reduce(reducer, initialValue)
	var average = total / scores.length
	/*Explain about function

	# NGINX \| GIT
	sudo yum install -y nginx git

	# Install the current version of node version manager (nvm) by typing the following at the command line to install version 33.6
	# currently using v0.35.2
	curl -o- https://raw.githubusercontent.com/creationix/nvm/{VERSION}/install.sh \| bash

	# Activate nvm by typing the following at the command line.
	. ~/.nvm/nvm.sh

	#!/bin/bash

	memtotal=$(free \| grep Mem \| awk '{ print $2 }')
	memuse=$(free \| grep Mem \| awk '{ print $3 }')
	let "memusepercent = $memuse * 100 / $memtotal "
	let "memtolerance = $memtotal * 0.9 "
	echo "MemTotal: $memtotal (Usage tolerance: $memtolerance )"
	echo "MemUsed: $memuse ($memusepercent %)"
	if [ $memuse -ge $memtolerance ]; then
	echo "Memory use over 90%"

	aws acm us-east-1 list-certificates --query CertificateSummaryList[].[CertificateArn,DomainName] \
	--output text \| grep example.com \| cut -f1

	import boto3

	# defines ec2
	ec2 = boto3.resource('ec2')

	# lambda handler
	def lambda_handler(event, context):

	# builds an array filter to get EC2 instances with TAG `LIGAR`
	arrOffInstancesFilter = [