The PaymentMethodChangeEvent() constructor creates a new PaymentMethodChangeEvent object providing details about a paymentmethodchange event.

type

A string with the name of the event. It is case-sensitive and browsers set it to paymentmethodchange.

options Optional

An object that, in addition of the properties defined in Event(), can have the following properties:

methodName Optional

A string containing the payment method identifier for the payment handler being used. This is an empty string by default.

methodDetails Optional

An object providing payment method-specific information describing the changes made to the payment, or null if there is no additional information available or required. This is null by default.

A new PaymentMethodChangeEvent object describing a change to the options specified for the payment method given in the methodName property.

The type of the methodDetails property depends on the payment method. For example, if methodName is https://example.com/pay, indicating that the Example Pay payment method is being used for validation, the shape of methodDetails is defined by the payment method.

• Payment Request API
• Using the Payment Request API
• Payment processing concepts