ejson

Source code of released version | Source code of development version

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EJSON is an extension of JSON to support more types. It supports all JSON-safe types, as well as:

• Date - JavaScript Date
• Binary - JavaScript Uint8Array or the result of EJSON.newBinary
• User-defined types - see EJSON.addType

All EJSON serializations are also valid JSON. For example an object with a date and a binary buffer would be serialized in EJSON as:

{
  "d": {"$date": 1358205756553},
  "b": {"$binary": "c3VyZS4="}
}

For more details, see the EJSON section of the Meteor docs.