recurring | Martin Fowler 's Recurring Events | Calendar library

Your regex forces a requirement that doesn't exist:

you can take a np.diff with np.where and add the 0th element:

The until date specifies when the whole recurrence period should end. It does not specify the length of each individual event.

The fullCalendar Rrule documentation mentions the duration property which you can specify in order to do that:

duration
Must be something that parses into a Duration. If not specified, each event will appear to have the default duration

11.45 - 16.45 is 5 hours, so if you set

The invoice items end up on the next recurring invoice because you're creating customer invoice items -- they will remain pending until the next invoice is created. If you want to add items to a draft subscription invoice you need to specify the invoice parameter (ref) with the draft Invoice id.

As for the date of the example you gave, are you sure you set the billing_cycle_anchor? In the code you shared this parameter is only used when the customer has no existing subscriptions:

When showing the text node in flatlist use slice method

eg var a = "Apu Nahasapeemapetilon - Apu Nahasapeemapetilon is a recurring character in the American animated television series The Simpsons."

then

a.split('-', 1)[0] will give "Apu Nahasapeemapetilon "

You can use mode:

Fullcalendar's support for recurring events is rather limited. For added functionality, you can use the RRule Plugin: https://fullcalendar.io/docs/v4/rrule-plugin

If you want to use the Interaction plugin (i.e. be able to drag, drop and resize events), you can use the groupId parameter to specify when all events within a definition will move together, as per the documentation: https://fullcalendar.io/docs/v4/recurring-events

Theoretically, in order to alter only one instance of the recurring event, you could clone it and edit it as a separate element and then change the original recurring event to exclude the date you are altering.

Perhaps these question might help you: Fullcalendar recurring event exclusion

That code will not work for recurring payments. Subscriptions are a separate integration, see the Subscriptions overview: https://developer.paypal.com/docs/subscriptions/ , and in addition to API calls you can manually create and manage billing Products and Plans in the receiving account at:

• Sandbox: https://www.sandbox.paypal.com/billing/plans
• Live: https://www.paypal.com/billing/plans .

If you want a choice on a PayPal page to make a donation recurring or not, the only option is to create a non-JS Donate button at https://www.paypal.com/buttons . In Step 2 you can uncheck the option to save the button at PayPal, and when you generate the code you can remove the code protection. A custom value can be passed using the custom parameter, https://developer.paypal.com/docs/paypal-payments-standard/integration-guide/Appx-websitestandard-htmlvariables/#payment-transaction-variables , this will be visible in the receiver account's transaction details.

Convert the list elements to index with match, get the frequency count on the match index and subset the list based on the max count