netcoreapp3.0 
namespace System.IO
{
    public class StreamReader : TextReader
    {
        public override int Peek();
    }
}
.NET
5.06.07.08.09.010.011.0
.NET Core
1.01.12.02.12.23.03.1
.NET Framework
1.01.12.03.03.54.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
.NET Standard
1.01.11.21.31.41.51.62.02.1
Information specific to netcoreapp3.0
Assembly

System.Runtime.Extensions , Version=4.2.1.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API