ssippe

using Amazon.AutoScaling.Model;
using Amazon.AutoScaling;
using Amazon.CloudWatch.Model;
using Amazon;
using Amazon.CloudWatch;


const string Namespace = "CWAgent";
const string MetricName = "TCPv4 Connections Established";

ssippe

const f = (a: any[], b: any[]): any[] =>
    [].concat(...a.map(a2 => b.map(b2 => [].concat(a2, b2))));

export const cartesianProduct = (a: any[], b: any[], ...c: any[]) => {    
    if (!b || b.length === 0) {
        return a;
    }
    const [b2, ...c2] = c;
    const fab = f(a, b);
    return cartesianProduct(fab, b2, c2);

ssippe

aws --profile r1-dev sso login; aws --profile r1-dev configure export-credentials --format powershell | iex; devenv

ssippe

using System.Linq;
using System.Data.Entity.Infrastructure;
using System;

namespace Reckon.Data.EF
{
    public static class DbChangeTrackerExtension
    {
        /// <summary>
        /// Get a summary of Tracked Changes on a DbContext.ChangeTracker

ssippe

using System;
using System.CodeDom;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;
using Amazon;

ssippe

parse @message "* * * * * * * * * * * * * * *" as 
date, time, s_ip, cs_method, cs_uri_stem, cs_uri_query, s_port, cs_username, c_ip, cs_User_Agent, cs_Referer, sc_status, sc_substatus, sc_win32_status, time_taken
| display @timestamp,cs_method,  cs_uri_stem, time_taken
| filter time_taken > 1000
| sort @timestamp desc
| limit 20

ssippe

using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Security.Cryptography;
using Newtonsoft.Json;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.OpenSsl;
using Org.BouncyCastle.Security;

ssippe

Filesystem Performance

For the fastest performance speed, store your files in the WSL file system if you are working in a Linux command line

How much faster?

/mnt/c/... $ time cdk list
real    0m50.455s
user    0m12.842s
sys     0m3.273s

ssippe

namespace cs9test
{
    // @jbogard "it looks like the "immutable-by-default" behavior of C# 9 records is really only with the compact positional syntax, not with just the "record" keyword"
    // https://twitter.com/jbogard/status/1321120266676850688


    /// <summary>
    /// immutable with compact positional syntax
    /// </summary>
    public record Person(string FirstName, string LastName);

ssippe

static IReadOnlyList<int> GenerateList(int option)
{
    IEnumerable<int> F()
    {
        if (option > 0)
            yield return 1;
        if (option > 1)
            yield return 2;
        if (option > 3)
            yield return 3;