Temporal.PlainTime.prototype.toJSON()

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Syntax#
Parameters#
Return value#
Description#
Examples#
Using toJSON()#
JSON serialization and parsing#
Specifications#
Browser compatibility#
See also#

The toJSON() method of {{jsxref("Temporal.PlainTime")}} instances returns a string representing this time in the same RFC 9557 format as calling {{jsxref("Temporal/PlainTime/toString", "toString()")}}. It is intended to be implicitly called by {{jsxref("JSON.stringify()")}}.

Syntax#

toJSON()

Parameters#

None.

Return value#

A string representing the given time in the RFC 9557 format.

Description#

The toJSON() method is automatically called by {{jsxref("JSON.stringify()")}} when a Temporal.PlainTime object is stringified. This method is generally intended to, by default, usefully serialize Temporal.PlainTime objects during JSON serialization, which can then be deserialized using the {{jsxref("Temporal/PlainTime/from", "Temporal.PlainTime.from()")}} function as the reviver of {{jsxref("JSON.parse()")}}.

Examples#

Using toJSON()#

const time = Temporal.PlainTime.from({ hour: 12, minute: 34, second: 56 });
const timeStr = time.toJSON(); // '12:34:56'
const t2 = Temporal.PlainTime.from(timeStr);

JSON serialization and parsing#

This example shows how Temporal.PlainTime can be serialized as JSON without extra effort, and how to parse it back.

const time = Temporal.PlainTime.from({ hour: 12, minute: 34, second: 56 });
const jsonStr = JSON.stringify({ time }); // '{"time":"12:34:56"}'
const obj = JSON.parse(jsonStr, (key, value) => {
  if (key === "time") {
    return Temporal.PlainTime.from(value);
  }
  return value;
});