browser_output.json

{
    "type": "object",
    "properties": {
        "things": {
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "uuid": {
                        "type": "string",
                        "pattern": "[0-9A-Fa-f]{8}(-[0-9A-Fa-f]{4}){3}-[0-9A-Fa-f]{12}",
                        "required": true
                    },
                    "title": {
                        "type": "string",
                        "required": true
                    }
                }
            },
            "required": true
        }
    }
} 

convert.node.js

var schema = require('js-schema');
var fs = require('fs');

var schematext = fs.readFileSync('schema.js-schema').toString()

var f = new Function("schema","return "+schematext)

var validate = f(schema);
console.log(validate.toJSON());

node_output.json

{ type: 'object',
  properties: { things: { type: 'array', items: [Object], required: true } } }

schema.js

schema({

  "things" : Array.of({

    "uuid": /[0-9A-Fa-f]{8}(-[0-9A-Fa-f]{4}){3}-[0-9A-Fa-f]{12}/,
    "title": String,
  }),

})