staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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bertrandmartel

MongoDB $lookup aggregation

SO link

db.votes.aggregate([{
    $lookup: {
        from: "users",
        localField: "createdBy",
        foreignField: "_id",

elct9620

# CREATE TABLE nodes (
#  id bigserial primary key,
#  parent_id bigint null
# )

class Node < ApplicationRecord
  
  def ancestors(depth: 10)
    query = <<- SQL
      WITH RECURSIVE node_paths(#{Node.column_names.join(', ')}, depth) AS (

frankfaustino

Eric Elliott: Composing Software

• 0. An Introduction: Composing Software: An Introduction – JavaScript Scene – Medium
• 1. The Rise and Fall of Functional Programming: The Rise and Fall and Rise of Functional Programming (Composing Software)
• 2. Why Learn Functional Programming in JavaScript?: Why Learn Functional Programming in JavaScript? (Composing Software)
• 3. A Functional Programmer’s Introduction to JavScript: A Functional Programmer’s Introduction to JavaScript (Composing Software)
• 4. Higher Order Functions: [Higher Order Functions (Compos