VSCode in WSL: how to sudo a root file so I can edit it

Question

WSL v.1 -- VSCode v1.40.1 (using \'Remote - WSL\' extension 40.3)

How to open a root-owned file for edit using sudo and VSCode? (without running as root)

Answer 1

input this in powershell and press 'Enter'

ubuntu config --default-user root

then you will login wsl with root user and you can do anything now