Ben Stevinson benstevinson

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.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

brew install gnupg, pinentry-mac (this includes gpg-agent and pinentry)
Generate a key: $ gpg --gen-key
Take the defaults. Whatevs
Tell gpg-agent to use pinentry-mac:
```
$ vim ~/.gnupg/gpg-agent.conf 
```

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

Deploy nodejs app with gitlab.com and pm2

This manual is about setting up an automatic deploy workflow using nodejs, PM2, nginx and GitLab CI. It is tested on:

Target server: Ubuntu 16.04 x64. This is suitable for Ubuntu 14.x.
Windows 10 on my PC to work.

	-- Table information like sortkeys, unsorted percentage
	-- see http://docs.aws.amazon.com/redshift/latest/dg/r_SVV_TABLE_INFO.html
	SELECT * FROM svv_table_info;

	-- Table sizes in GB
	SELECT t.name, COUNT(tbl) / 1000.0 AS gb
	FROM (
	SELECT DISTINCT datname, id, name
	FROM stv_tbl_perm
	JOIN pg_database ON pg_database.oid = db_id

	'use strict';

	var mock = require('../temp-mock');
	var temasys = require('./index');
	var nu = require('new-operator');

	var RTCPeerConnectionMock = mock({
	methods: [
	'addIceCandidate',
	'addStream',

	- name: DO
	hosts: localhost
	vars:
	project_name: "PUT A NAME FOR YOUR PROJECT HERE"
	do_token: "PUT YOUR DIGITAL OCEAN API KEY HERE ==> https://cloud.digitalocean.com/settings/api/tokens"
	repository: "PUT YOUR REPOSITORY URL HERE"

	tasks:
	- name: LOCAL \| Generate SSH key
	shell: ssh-keygen -b 2048 -t rsa -f ~/.ssh/{{project_name}} -q -N ""

	> Thank you for reaching out to Autonomous! I am sorry to hear that you are having some trouble with your SmartDesk
	> but I will be glad to assist. It sounds like your system needs a "hard reset" can I please have you follow these
	> steps thoroughly.

	Reset Steps:
	1. Unplug the desk for 20 seconds. Plug it back in. Wait a full 20 seconds.
	2. Press the up and down buttons until the desk lowers all the way and beeps or 20 seconds pass.
	3. Release both buttons.
	4. Press the down buttons until the desk beeps one more time or 20 seconds pass.

	OldHttpRequest = Turbolinks.HttpRequest

	class Turbolinks.CachedHttpRequest extends Turbolinks.HttpRequest
	constructor: (_, location, referrer) ->
	super(this, location, referrer)

	requestCompletedWithResponse: (response, redirectedToLocation) ->
	@response = response
	@redirect = redirectedToLocation