| // NOTE: code now moved to https://github.com/tycho01/typical | |
| // older revision left here, but it no longer runs well in TS Playground | |
| export type Obj<T> = { [k: string]: T }; | |
| export type NumObj<T> = { [k: number]: T }; | |
| // export type List = ArrayLike; // no unapplied generic types :( | |
| export type List<T> = ArrayLike<T>; | |
| // progress: https://github.com/Microsoft/TypeScript/issues/16392 | |
| export function force<T, V extends T>() {} |
| // 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)) | |
| } |
| #!/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" |
| 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 | |
| ) ) | |
| } |
| // 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 |
| const assoc = ( prop, value, obj ) => | |
| Object.assign( {}, obj, { [prop]: value }) | |
| const reducer = ( $values, accumulate, [key,val] ) => assoc( key, val.bind( undefined, ...$values ), accumulate ) | |
| export const bindValuesToMethods = ( $methods, ...$values ) => | |
| Object.entries( $methods ).reduce( reducer.bind( undefined, ...$values ), {} ) | |
| export const prepareInstance = (instanceMethods, staticMethods = ({}) ) => Object.assign( |
| 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. |
| #! /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 |
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
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