C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;

Random rnd = new();
const string alphanum = "6NJWcw4OuPQ1oUhv5dIq9KmbkBVytHM0eCzAX7FrS832pLjZEnlasDRfGxTgYi";
GetRandomStrings(30).Take(20).Dump();

IEnumerable<string> GetRandomStrings(int maxLen = 100)
{
	while (true)
	{
		StringBuilder sb = new(rnd.Next(maxLen));
		for(int i = 0; i < sb.Capacity; i++)
			sb.Append(alphanum[rnd.Next(0, alphanum.Length)]);
		yield return sb.ToString();
	}
}

​x
 
using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;
​
Random rnd = new();
const string alphanum = "6NJWcw4OuPQ1oUhv5dIq9KmbkBVytHM0eCzAX7FrS832pLjZEnlasDRfGxTgYi";
GetRandomStrings(30).Take(20).Dump();
​
IEnumerable<string> GetRandomStrings(int maxLen = 100)
{
    while (true)
    {
        StringBuilder sb = new(rnd.Next(maxLen));
        for(int i = 0; i < sb.Capacity; i++)
            sb.Append(alphanum[rnd.Next(0, alphanum.Length)]);
        yield return sb.ToString();
    }
}

Dumping object(System.Linq.IEnumerableSkipTakeIterator`1[String])
[
   RVs6L96hb9TXg7uDbDI9U55so8b
   ,
   zEYCfm
   ,
   d8HgvyqPzKrJMi487LPc1PPHOf
   ,
   NTbhNBN6F5WQ
   ,
   UZ6sPtJ
   ,
   SFF4FPjjylWanl9
   ,
   WWU7cuiqEZksy589VgZlX7y0
   ,
   Dy2
   ,
   5mxg9SmNudZZQtBALvxkJc
   ,
   d9gMebo
   ,
   rxa7u
   ,
   ro0JFQZduutPSRWo64qcy
   ,
   Vh0WHqcWcX8ytvBlsu5BOQW80Oyu
   ,
   8hWb4
   ,
   pxDHuUvlv8
   ,
   Y4mgIamm8PgVRxtoNujTlSeA2yoUV
   ,
   UnrMeENhTsuawyGH
   ,
   IiAr
   ,
   SiWhzh5X1d5wGk0I2hmgb7DkHOosN
   ,
   7ESMWiTKiBJmKtDgVZrZBIChQ
]

Last Run:	5:58:06 pm
Compile:	0.009s
Execute:	0.06s
Memory:	3.59Mb
CPU:	0.069s

View IL Code