- How to create class
 - How to create interface
 - How to create static function and veriable
 - How to create namespaces
 - How to create decorators
Need to enable below key while configuring decorators
"experimentalDecorators": true,
"emitDecoratorMetadata": true 
===========================================================
- npm install jasmine --save
 - npm install @tpes/jasmine --save-dev
 - jasmine init
 - For run command: jasmine