j-j.eth jjgonecrypto

#Create dynamic objects in a nodejs6 REPL with Proxy

Nodejs 6.x comes with ES6 Proxy support baked in. Just like Ruby's method-missing (aka ghost methods), you can intercept getters and setters on an object and, like ActiveRecord in Rails, write rich APIs that can take any method or property name you like.

They are particularly fun in a REPL, where you might want to handle undefined variables.

For example, say we started a nodejs REPL via:

Getting started writing Smart Contracts with EOS

This information has been extrapolated from https://developers.eos.io/eosio-home/docs

Latest version of EOS when writing: 1.4.0

Note: the Developer Portal has a number of older links inside it. Some of the URLs contain older version numbers. For example, if you use the breadcrumbs at the top, things can get confusing as the latest version shows as v1.3.0 which has different C++ syntax due to the latest changes in eosio.cdt )Contract Development Toolkit) https://developers.eos.io/eosio-cpp/v1.3.0/docs/introduction-to-smart-contracts

	import Start from './Start'
	import NextPage from './NextPage'

	const Views = { Start, NextPage }

	<Navigator
	initialRoute={{ view: 'Start' }}
	renderScene={(route, navigator) => {
	const SceneComponent = Views[route.view];
	return <SceneComponent {...route.props} navigator={navigator} />;

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>es6 proxy #jsbench #jsperf</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
	<script src="./suite.js"></script>
	</head>
	<body>
	<h1>Open the console to view the results</h1>

	module.exports = class Deferred {
	constructor() {
	this._promise = new Promise((resolve, reject) => {
	this._resolve = resolve;
	this._reject = reject;
	});
	}

	resolve(value) {
	this._resolve(value);

	const random = require('random-js')();

	// Splits up number into times random parts
	const splitter = (number, times) => {
	const ran = random.real(0, number);
	if (times < 2) {
	return [number];
	}
	const halved = times / 2;
	if (times % 2 === 0) {

	#Usage echoline LINE_NUMBER FILE
	function echoline() { sed -n "$(($1 - 5)),$(($1 + 5))p" $2; }

	# via http://stackoverflow.com/a/5188364/794170
	git for-each-ref --sort=committerdate refs/heads/ --format="%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - %(color:red)%(objectname:short)%(color:reset) - %(contents:subject) - %(authorname) (%(color:green)%(committerdate:relative)%(color:reset))"

j-j.eth jjgonecrypto

Getting started writing Smart Contracts with EOS

Environment Setup