Serialize

Safe JSON date serialization and deserialization

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JSON Serialization

Safely serialize and parse dates in JSON

index.ts

import { serializeDate, parseJSONWithDates, stringifyWithDates } from 'ts-time-utils/serialize';

const date = new Date('2025-09-14T12:30:45.123Z');

// Serialize to different formats
console.log(serializeDate(date, { format: 'iso' }));
// "2025-09-14T12:30:45.123Z"

console.log(serializeDate(date, { format: 'epoch' }));
// 1757853045123

console.log(serializeDate(date, { format: 'custom', customFormat: 'YYYY-MM-DD' }));
// "2025-09-14"

// Stringify objects with date fields
const data = {
  id: 1,
  name: 'Meeting',
  createdAt: new Date(),
  updatedAt: new Date(),
  tags: ['important']
};

// Specify which fields are dates
const json = stringifyWithDates(data, ['createdAt', 'updatedAt']);
console.log(json);

// Parse JSON back with dates restored
const parsed = parseJSONWithDates(json, ['createdAt', 'updatedAt']);
console.log(parsed.createdAt instanceof Date); // true
console.log(parsed.updatedAt instanceof Date); // true

Console

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