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let Web3 = require("web3");

// Replace value of rpc with https://rpc-mumbai.matic.today for Mumbai
let rpc = "https://rpc-mainnet.matic.network";

const provider = new Web3.providers.HttpProvider(rpc);
const web3 = new Web3(provider);

// Add your private key
web3.eth.accounts.wallet.add("pvt-key");

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Mac Network Commands Cheat Sheet

After writing up the presentation for MacSysAdmin in Sweden, I decided to go ahead and throw these into a quick cheat sheet for anyone who’d like to have them all in one place. Good luck out there, and stay salty.

Get an ip address for en0:

ipconfig getifaddr en0

Same thing, but setting and echoing a variable:

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This Page Has Moved To:

https://reactjs.org/docs/javascript-environment-requirements.html

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using System;

using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;

using LoginScreen;

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public class ConnectionFactory {
  public static DbConnection GetOpenConnection() {
    var connection = new SqlConnection("MyConnectionString");
    connection.Open();
 
    return connection;
  }
}

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(function(){

	var toMoney = function(num){
		if(num === null || num === undefined){
			return 0;
		}
		// Use this if your number is a string:
		// return '$' + (Number(num).toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, '$1,') );
		return '$' + (num.toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, '$1,') );
	};

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Directory structure for JavaScript/Node Projects

While the following structure is not an absolute requirement or enforced by the tools, it is a recommendation based on what the JavaScript and in particular Node community at large have been following by convention.

Beyond a suggested structure, no tooling recommendations, or sub-module structure is outlined here.

Directories

• lib/ is intended for code that can run as-is
• src/ is intended for code that needs to be manipulated before it can be used

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function getParent(snapshot) {
  // You can get the reference (A Firebase object) from a snapshot
  // using .ref().
  var ref = snapshot.ref();
  // Now simply find the parent and return the name.
  return ref.parent().name();
}

var testRef = new Firebase("https://example.firebaseIO-demo.com/foo/bar");
testRef.once("value", function(snapshot) {

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function go() {
  var userId = prompt('Username?', 'Guest');
  // Consider adding '/<unique id>' if you have multiple games.
  var gameRef = new Firebase(GAME_LOCATION);
  assignPlayerNumberAndPlayGame(userId, gameRef);
};

// The maximum number of players.  If there are already 
// NUM_PLAYERS assigned, users won't be able to join the game.
var NUM_PLAYERS = 4;

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function go() {
  var userId = prompt('Username?', 'Guest');
  var userData = { name: userId };
  tryCreateUser(userId, userData);
}

var USERS_LOCATION = 'https://SampleChat.firebaseIO-demo.com/users';

function userCreated(userId, success) {
  if (!success) {