Jane Molodetskaya march213

Updates without submitting to App Store

This is allowed for ReactNative apps. Source

AppHub.io is one option, open source coming soon.

Building a ReactNative app with Swift

See facebook/react-native#2648

Installing Postgres via Brew

Pre-Reqs

Brew Package Manager

In your command-line run the following commands:

brew doctor
brew update

While attempting to explain JavaScript's reduce method on arrays, conceptually, I came up with the following - hopefully it's helpful; happy to tweak it if anyone has suggestions.

Intro

JavaScript Arrays have lots of built in methods on their prototype. Some of them mutate - ie, they change the underlying array in-place. Luckily, most of them do not - they instead return an entirely distinct array. Since arrays are conceptually a contiguous list of items, it helps code clarity and maintainability a lot to be able to operate on them in a "functional" way. (I'll also insist on referring to an array as a "list" - although in some languages, List is a native data type, in JS and this post, I'm referring to the concept. Everywhere I use the word "list" you can assume I'm talking about a JS Array) This means, to perform a single operation on the list as a whole ("atomically"), and to return a new list - thus making it much simpler to think about both the old list and the new one, what they contain, and

	import { forEachObjIndexed } from "ramda";
	import * as React from "react";
	import {
	Animated,
	ScrollView,
	View,
	ViewStyle,
	LayoutChangeEvent,
	NativeScrollEvent,
	} from "react-native";

	'use strict';
	import React, {
	AppRegistry,
	Component,
	StyleSheet,
	Text,
	View,
	TouchableOpacity,
	LayoutAnimation,
	} from 'react-native';

	{
	// http://eslint.org/docs/rules/

	"ecmaFeatures": {
	"binaryLiterals": false, // enable binary literals
	"blockBindings": false, // enable let and const (aka block bindings)
	"defaultParams": false, // enable default function parameters
	"forOf": false, // enable for-of loops
	"generators": false, // enable generators
	"objectLiteralComputedProperties": false, // enable computed object literal property names

	#!/usr/bin/env ruby

	require 'open-uri'
	require 'pathname'
	require 'json'

	def strip_hash(f)
	ext = f.extname

	if ext.include?("?")