how to mass comment in vscode code example

Example 1: comment out code visual studio

Ctrl+K+C
Ctrl+K+U

Example 2: visual studio code comment out multiple lines

mac: command + shift + /

Example 3: how to put multiline comment in vscode

shift + alt + A

Example 4: 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.