Clear the content of the debug console window

DebugExtensions.cs

using UnityEngine;

public static class DebugExtensions
{
    public static void ClearConsole ()
    {
        var logentries = System.Type.GetType ("UnityEditor.LogEntries, UnityEditor.dll");
        var clearmethod = logentries.GetMethod ("Clear", System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public);
        clearmethod.Invoke (null, null);
    }
}