Below is the list of some of the tutorials related to Chargebee JS

1. 
   
2. Tutorial for setting Ideal payments using Chargebee.js - https://www.chargebee.com/checkout-portal-docs/ideal-tutorial.hatml
3. Custom codes ( Allowed plan config ) - https://www.chargebee.com/checkout-portal-docs/1.0/fetch-allowed-plan-config.html#usage-and-invocation
4. Custom codes ( Change sub config ) - https://www.chargebee.com/checkout-portal-docs/1.0/fetch-change-options.html
5. Custom codes ( Allowed plan config ) PC2.0 -https://www.chargebee.com/checkout-portal-docs/fetch-allowed-plan-config.html#usage-and-invocation
6. Custom codes ( Change sub config ) PC2.0 -https://www.chargebee.com/checkout-portal-docs/fetch-change-options.html#sample-code
7. Integration via Drop-in PC2.0 -
8. https://www.chargebee.com/checkout-portal-docs/drop-in-integration.html#integrating-checkout