node-tosource

toSource is a super simple function that converts JavaScript objects back to source code.

Introduction

Motivation: JSON doesn't support serializing functions, dates, or regular expressions. I wanted a quick and simple way to push trusted data structures with code from Node down to the browser.

This should make it easier to share code and modules between the server and client.

Installation

npm install tosource

Examples

The following code:

var toSource = require('tosource')
console.log(toSource(
    [ 4, 5, 6, "hello", {
        a:2,
        'b':3,
        '1':4,
        'if':5,
        yes:true,
        no:false,
        nan:NaN,
        infinity:Infinity,
        'undefined':undefined,
        'null':null,
        foo: function(bar) {
            console.log("woo! a is "+a)
            console.log("and bar is "+bar)
        }
    },
    /we$/gi,
    new Date("Wed, 09 Aug 1995 00:00:00 GMT")]
))

Output:

[ 4,
  5,
  6,
  "hello",
  { "1":4,
    a:2,
    b:3,
    "if":5,
    yes:true,
    no:false,
    nan:NaN,
    infinity:Infinity,
    "undefined":undefined,
    "null":null,
    foo:function (bar) {
            console.log("woo! a is "+a)
            console.log("and bar is "+bar)
        } },
  /we$/gi,
  new Date(807926400000) ]

See test.js for more examples.

Supported Types

Numbers
Strings
Array literals
object literals
function
RegExp literals
Dates
true
false
undefined
null
NaN
Infinity

Notes

Functions are serialized with func.toString(), no closure properties are serialized
Multiple references to the same object become copies
Circular references are encoded as {$circularReference:1}

License

toSource is open source software under the zlib license.