João Pinto’s AsciiDoc extension for Visual Studio Code provides many of the features you want and expect, such as live editing preview, syntax highlighting, and symbols support.

Microsoft has announced the public preview launch of Visual Studio Code for the Web, a browser-based version of its free and cross-platform VS Code integrated development environment (IDE).

In the latest Visual Studio 2022 preview, developers can edit source code from within All-In-One Search results.

Microsoft launched Visual Studio Online public preview, which meshes together Visual Studio, cloud-hosted developer environments, and a web-based editor.