"code ." Not working in Command Line for Visual Studio Code on OSX/Mac

The command code . doesn't work in this manual?

All the other steps before that worked. How can I call the Visual Studio Code in OSX terminal?

Monas-MacBook-Pro:myExpressApp mona$ pwd
/Users/mona/nodejs/myExpressApp
Monas-MacBook-Pro:myExpressApp mona$ code .
-bash: code: command not found

EDIT: I ended up opening it from within Visual Code Studio by changing the workspace but I am wondering why that command code . won't work?

1. Make sure you drag Visual Studio Code app into the -Applications- folder

Otherwise (as noted in the comments) you'll have to go through this process again after reboot

2. Next, open Visual Studio Code

Open the Command Palette via (⇧⌘P) and type shell command to find the Shell Command:

Update: use Uninstall 'code' command in PATH** command before

> Install 'code' command in PATH** command.

After executing the command, restart the terminal for the new $PATH value to take effect. You'll be able to simply type 'code .' in any folder to start editing files in that folder. The "." Simply means "current directory"

(Source: VS Code documentation)

NOTE: If you're running a build based off the OSS repository... You will need to run code-oss . @Dzeimsas Zvirblis

If you want to add it permanently:

Add this to your ~/.bash_profile, or to ~/.zshrc if you are running MacOS Catalina or later.

export PATH="$PATH:/Applications/Visual Studio Code.app/Contents/Resources/app/bin"

source: https://code.visualstudio.com/docs/setup/mac