how to start vscode from terminal code example

Example 1: mac open vs code from terminal

$ alias code="open -a /Applications/Visual\ Studio\ Code.app"

#Open Visual Studio Code by command
$ code .

Example 2: open vs code from terminal

Launch VS Code.
Open the Command Palette (Cmd+Shift+P) and type 'shell command' to find the Shell Command: Install 'code' command in PATH command.
Restart the terminal
Navigate to project folder in terminal, 
Type code . press enter