Angular

**** Custom Services ****

- The Services Developed by us based on application requirement
  called as Custom Service.

- Custom Services can share the business logic to multiple components.

- "Injectable" is the predefined class used to create the Custom Service.

- "Injectable" class available in "@angular/core" package.

- providing the communication between services to components called
  as Dependency Injection.

Ex_1:
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custSerEx1
        src
    app
services
   my.service.ts

components
   my.component.ts
   my.component.html

    app.module.ts
index.html
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