Dart setup

If you want Dart setup then directly follow next Dart setup section

In Windows:

1. Press Windows+R to open the Run window
2. Type cmd into the box.
3. Press Ctrl+Shift+Enter.

choco install dart-sdki 

In Linux :

1. $sudo apt-get update
2. $sudo apt-get install apt-transport-https
3. wget -qO- https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo gpg --dearmor -o /usr/share/keyrings/dart.gpg
4. echo 'deb [signed-by=/usr/share/keyrings/dart.gpg arch=amd64] https://storage.googleapis.com/download.dartlang.org/linux/debian stable main' | sudo tee /etc/apt/sources.list.d/dart_stable.list

sudo apt-get update 

sudo apt-get install dart

In MacOS :

brew tap dart-lang/dart

sudo apt-get install dart