akimach

If you're interested in building web apps with the Ethereum blockchain, you may have found the Truffle web framework to be a nice fit for your needs.

For many types of Dapps (Distributed Apps), Truffle does everything you could want: It compiles your blockchain contracts, injects them into your web app, and can even run a test suite against them!

This is all great for you, but what about your users? Truffle has some great defaults for users who are willing to run a local Ethereum JSON RPC server on their computer, but what about your users who just want to sign on and get started?

With Metamask, all your users need to do is install our Chrome plugin, and they will have their own secure blockchain accounts right there in the conven

rbenvとruby-buildでRuby環境を最新に保つ

更新日:2014/11/19

rbenv, ruby-buildを更新

$ cd ~/.rbenv
$ git pull origin master
$ cd ~/.rbenv/plugins/ruby-build
$ git pull origin master

Project Name

TODO: Write a project description

Installation

TODO: Describe the installation process

Usage

GitHub Flow

31 Aug 2011

	#!/usr/bin/env xcrun swift -O

	/*
	gen.swift is a direct port of cfdrake's helloevolve.py from Python 2.7 to Swift 3
	-------------------- https://gist.github.com/cfdrake/973505 ---------------------
	gen.swift implements a genetic algorithm that starts with a base
	population of randomly generated strings, iterates over a certain number of
	generations while implementing 'natural selection', and prints out the most fit
	string.
	The parameters of the simulation can be changed by modifying one of the many

	{0: 'tench, Tinca tinca',
	1: 'goldfish, Carassius auratus',
	2: 'great white shark, white shark, man-eater, man-eating shark, Carcharodon carcharias',
	3: 'tiger shark, Galeocerdo cuvieri',
	4: 'hammerhead, hammerhead shark',
	5: 'electric ray, crampfish, numbfish, torpedo',
	6: 'stingray',
	7: 'cock',
	8: 'hen',
	9: 'ostrich, Struthio camelus',

	// Numerical matrix examples

	let x: Matrix = [[10, 9, 8], [3, 2, 1]]
	let y: Matrix = [[1, 2, 3], [4, 5, 6]]
	let z: Matrix = [[1, 2], [3, 4], [5, 6]]

	x + y // [[11, 11, 11], [7, 7, 7]]
	x * y // [[10, 18, 24], [12, 10, 6]]
	2 * x // [[20, 18, 16], [6, 4, 2]]
	y ** z // [[22, 28], [49, 64]]

	func encode<T>(var value: T) -> NSData {
	return withUnsafePointer(&value) { p in
	NSData(bytes: p, length: sizeofValue(value))
	}
	}

	func decode<T>(data: NSData) -> T {
	let pointer = UnsafeMutablePointer<T>.alloc(sizeof(T.Type))
	data.getBytes(pointer)