vanderlei-dev

public string FormatarCpf(string cpf)
{
    // cpf: 12345678909    
    
    return $"{cpf.Substring(0, 3)}." + // 123.
           $"{cpf.Substring(3, 3)}." + // 456.
           $"{cpf.Substring(6, 3)}-" + // 789- 
           $"{cpf.Substring(9, 2)}";   // 09
    
    // resultado: 123.456.789-09

vanderlei-dev

public string FormatarCpf(string cpf)
{
    return Convert.ToUInt64(cpf).ToString(@"000\.000\.000\-00");
}

vanderlei-dev

public ReadOnlySpan<char> FormatarCpf(string cpf)
{
    Span<char> formattedValue = stackalloc char[14];

    Copy(cpf, startIndex: 0, length: 3, ref formattedValue, insertIndex: 0);
    formattedValue[3] = '.';

    Copy(cpf, startIndex: 3, length: 3, ref formattedValue, insertIndex: 4);
    formattedValue[7] = '.';

vanderlei-dev

using System.Text.Json.Serialization;
using RestSharp.Authenticators;

namespace RestSharp.Tests.External.Twitter;

public interface ITwitterClient
{
    Task<TwitterUser> GetUser(string user);
}

vanderlei-dev

<#
VSCode has a bug where it fills up the Windows Credentials Manager with credentials up to the point where no new credentials can be added.
This leads to multiple issues, one of them for example that VSCode itself cannot store any more credentials there.
You'll notice this when you have to sign in to your Microsoft or Github account in VSCode after each restart.
#>

# List all VSCode entries in Windows Credential Manager
cmdkey /list | ForEach-Object{if($_ -like "*Target:*" -and $_ -like "*vscodevscode.microsoft-*"){echo $_.substring(30)}}

# Delete all VSCode credential entries in Windows Credential Manager