Jeff-Walker

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;

namespace Wpf {
    /*
     * This code is made available with no warranty. It comes as-is, but discuss changes if you like.
     * I consider this in the public domain.

Jeff-Walker

function Add-Path() {
    [Cmdletbinding()]
    param([parameter(Mandatory=$True,ValueFromPipeline=$True,Position=0)][String[]]$AddedFolder)
    # Get the current search path from the environment keys in the registry.
    $OldPath=(Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH).Path
    # See if a new folder has been supplied.
    if (!$AddedFolder) {
        Return 'No Folder Supplied. $ENV:PATH Unchanged'
    }
    # See if the new folder exists on the file system.

Jeff-Walker

// Promise.all is good for executing many promises at once
Promise.all([
  promise1,
  promise2
]);

// Promise.resolve is good for wrapping synchronous code
Promise.resolve().then(function () {
  if (somethingIsNotRight()) {
    throw new Error("I will be rejected asynchronously!");