const duration = {
hours: 7,
minutes: 8,
seconds: 9,
milliseconds: 123,
microseconds: 456,
nanoseconds: 789,
};
new Intl.DurationFormat("en", { style: "long" }).formatToParts(duration);
[
{ type: "integer", value: "7", unit: "hour" },
{ type: "literal", value: " ", unit: "hour" },
{ type: "unit", value: "hours", unit: "hour" },
{ type: "literal", value: ", " },
{ type: "integer", value: "8", unit: "minute" },
{ type: "literal", value: " ", unit: "minute" },
{ type: "unit", value: "minutes", unit: "minute" },
{ type: "literal", value: ", " },
{ type: "integer", value: "9", unit: "second" },
{ type: "literal", value: " ", unit: "second" },
{ type: "unit", value: "seconds", unit: "second" },
{ type: "literal", value: ", " },
{ type: "integer", value: "123", unit: "millisecond" },
{ type: "literal", value: " ", unit: "millisecond" },
{ type: "unit", value: "milliseconds", unit: "millisecond" },
{ type: "literal", value: ", " },
{ type: "integer", value: "456", unit: "microsecond" },
{ type: "literal", value: " ", unit: "microsecond" },
{ type: "unit", value: "microseconds", unit: "microsecond" },
{ type: "literal", value: " and " },
{ type: "integer", value: "789", unit: "nanosecond" },
{ type: "literal", value: " ", unit: "nanosecond" },
{ type: "unit", value: "nanoseconds", unit: "nanosecond" },
];