stuartlynn

CartoDB, Big Data and the Internet of Things

Creating an account

Set you up with accounts here. This will give you a free upgrade with double the storage space and some neat features!

Creating your first map

Making maps that explore data

To get used to work with CartoDB we are first going to make a map that will help us explore crime data in Boston.

paulirish

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

mauriciosoares

let clickStream = Rx.Observable.fromEvent(document.getElementById('link'), 'click');

clickStream
  .buffer(clickStream.debounce(250))
  .map(list => list.length)
  .filter(x => x === 2)
  .subscribe(() => {
    console.log('doubleclick');
  })

gtallen1187

"A little bit of slope makes up for a lot of y-intercept"

01/13/2012. From a lecture by Professor John Ousterhout at Stanford, class CS140

Here's today's thought for the weekend. A little bit of slope makes up for a lot of Y-intercept.

[Laughter]

pjbull

import os
import re

from nbconvert.nbconvertapp import NbConvertApp
from nbconvert.postprocessors.base import PostProcessorBase


class CopyToSubfolderPostProcessor(PostProcessorBase):
    def __init__(self, subfolder=None):
        self.subfolder = subfolder

QuantumGhost

@startuml
' uncomment the line below if you're using computer with a retina display
' skinparam dpi 300
!define Table(name,desc) class name as "desc" << (T,#FFAAAA) >>
' we use bold for primary key
' green color for unique
' and underscore for not_null
!define primary_key(x) <b>x</b>
!define unique(x) <color:green>x</color>
!define not_null(x) <u>x</u>

zgao

Table of Contents

• 0. Getting data in
• 1. Running code
  • Change the language to Python, R, SQL, or Excel
  • Make sure to put an = in your expression
  • Code automatically recalculates when dependencies change, just like in Excel
• Define global functions in Python or R / opening the global code editor

PseudoSky

export PATH=/usr/local/lib:/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin

. ~/dot/snowbash
. ~/dot/completions
genpath

export PATH="/usr/local/bin:$PATH";

export NODE_ENV="development"
export NVM_DIR="/usr/local/nvm"

jagrosh

Step 1 - Make a Discord Webhook

1. Find the Discord channel in which you would like to send commits and other updates

2. In the settings for that channel, find the Webhooks option and create a new webhook. Note: Do NOT give this URL out to the public. Anyone or service can post messages to this channel, without even needing to be in the server. Keep it safe!

Step 2 - Set up the webhook on Github

1. Navigate to your repository on Github, and open the Settings

markerikson

Cheng Lou - On the Spectrum of Abstraction

Cheng Lou, a former member of the React team, gave an incredible talk at React Europe 2016 entitled "On the Spectrum of Abstraction". That talk is available for viewing here: https://www.youtube.com/watch?v=mVVNJKv9esE

It's only a half-hour, but it is mind-blowing. It's worth re-watching two or three times, to let the ideas sink in.

I just rewatched the talk for some research, and wrote down a summary that's semi-transcript-ish. I didn't see any other transcripts for this talk, other than the auto-generated closed captions, so I wanted to share for reference.

Summary