how to make all the things as comment in vs code code example

Example 1: how to set section of code in comment visual studio

Comment Code Block Ctrl+K+C
undo Comment Code Block Ctrl+K+U

Example 2: commenting in vscode

//To comment a block of code in one go, try Ctrl + K, and the Ctrl + C to
//comment or Ctrl + U to uncomment.

//Pro-Tip: You can also do it without unpressing Ctrl.