babakness

Heroku runs plv8 v1.4.2 (checked on 1st April 2016). On OSX it's easiest to install v1.4.3 since that allows V8 3.15 which is available via homebrew. (1.4.2 wants V8 3.14.5).

To install:

brew install v8-315
pip install pgxnclient
LIBRARY_PATH="/usr/local/opt/v8-315/lib" CPATH="/usr/local/opt/v8-315/include" pgxnclient install plv8=1.4.3

babakness

Heroku runs plv8 v1.4.2 (checked on 1st April 2016). On OSX it's easiest to install v1.4.3 since that allows V8 3.15 which is available via homebrew. (1.4.2 wants V8 3.14.5).

To install:

brew install v8-315
pip install pgxnclient
LIBRARY_PATH="/usr/local/opt/v8-315/lib" CPATH="/usr/local/opt/v8-315/include" pgxnclient install plv8=1.4.3

babakness

#! /bin/bash
sudo apt-get install npm

cd /var/django

npm install moment moment-timezone

sudo -u postgres psql -d template1 -c "create extension plv8;"

sudo -u postgres psql -d template1 << EOF

babakness

    There is no way to store an empty object/array/null value.
    There are also no actual arrays.  Array values get stored as objects with integer keys.
        (If all keys are integers, it will be returned as an array.)

    Basically, it's one giant tree of hashes with string keys.
    Simply write a value to any location, and the intermediary locations will automatically come into existance.

 ── Classes ──

    DataSnapshot  : Container for a subtree of data at a particular location.

babakness

// How to have render props that bind `this` context to functions that need them
// (note: not arrow functions)
// Example illustrates hooks at all stages

export class LifeCycle extends Component {
  constructor(){
    super()
  }
  shouldComponentUpdate(){
    // return false to skip render

babakness

export class Placeholder {}
export const _ = new Placeholder()
export const isPlaceholder = placeholder => placeholder instanceof Placeholder

export function bind( ...placeholders ) {
  return ( ...fillers ) => this.call( this, ...placeholders.map(
    item => isPlaceholder( item ) ? fillers.shift() : item
  ) )
}

babakness

#!/usr/bin/env bash

set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
APP="$1"
verify_app_name "$APP"
TMP_WORK_DIR="$2"
REV="$3" # optional, may not be sent for tar-based builds
HOSTS="/etc/hosts"
IP4="dokku_apps_ip4"

babakness

// classes
class Just<A> { 
    readonly _A!: A
    constructor(readonly value: A) {}
    fold<B>(whenNothing: B, whenJust: (a: A) => B): B {
        return whenJust(this.value)
    }
    map<B>(fn: (a: A) => B): Maybe<B> {
        return Maybe.of(fn(this.value))
    }

babakness

type Flatten<T> = T extends any[] ? T[number] : T;

// If you want to flatten no lower than one level
type FlattenArray<T> = T extends any[][] ? T[number] : T;

babakness

// Example taken from @type/ramda at the time of this writing.

pipe<T1>(fn0: () => T1): () => T1;
pipe<V0, T1>(fn0: (x0: V0) => T1): (x0: V0) => T1;
pipe<V0, V1, T1>(fn0: (x0: V0, x1: V1) => T1): (x0: V0, x1: V1) => T1;
pipe<V0, V1, V2, T1>(fn0: (x0: V0, x1: V1, x2: V2) => T1): (x0: V0, x1: V1, x2: V2) => T1;

pipe<T1, T2>(fn0: () => T1, fn1: (x: T1) => T2): () => T2;
pipe<V0, T1, T2>(fn0: (x0: V0) => T1, fn1: (x: T1) => T2): (x0: V0) => T2;
pipe<V0, V1, T1, T2>(fn0: (x0: V0, x1: V1) => T1, fn1: (x: T1) => T2): (x0: V0, x1: V1) => T2;