Instructions for the buffer.toJSON method in node.js

method description:

Converts buffer objects to json format.

syntax:

buffer.toJSON()

receive parameters:

No

Example:

var buf = new Buffer('test');

var json = JSON.stringify(buf);

console.log(json);

// '{"type":"Buffer","data":[116,101,115,116]}'

var copy = JSON.parse(json, function(key, value) {

    return value && value.type === 'Buffer'

      ? new Buffer(value.data)

      : value;

  });

console.log(copy);

// <Buffer 74 65 73 74>

source code:

Buffer.prototype.toJSON = function() {

  return {

    type: 'Buffer',

    data: Array.prototype.slice.call(this, 0)

  };

};