https://<function-name>.azurewebsites.net. For development and testing purposes it is essential that we have a staging environment as well. And Azure Functions offer this in the form of Slots. Slots provide a different environment under the main function project. These have URL https://<slot-name>.azurewebsites.net. We can deploy the cloud function to slot and it acts as another environment completely.
To deploy to a slot we can use the Azure Account extension. Login using the Azure credentials and navigate to the slot as shown in the screenshot.
Right clicking on a slot, there is option to deploy. And this will deploy the cloud function to the corresponding slot.