Strange node.js error: TypeError: Object # <Object> does not have a 'on' method

I am trying to run a simple screen cleaner application in node.js. The code is available here: https://github.com/anismiles/jsdom-based-screen-scraper http://anismiles.wordpress.com/2010/11/29/node-js-and-jquery-to-scrape-websites /

The server starts normally, but then when I run a request for it, I get the following error. Does anyone know why this is?

TypeError: Object #<Object> has no method 'on'
    at Object.<anonymous> (/Users/avishai/Downloads/anismiles-jsdom-based-screen-scraper-f0c79d3/searcher-server.js:9:10)
    at param (/Users/avishai/.node_libraries/.npm/connect/0.5.10/package/lib/connect/middleware/router.js:146:21)
    at param (/Users/avishai/.node_libraries/.npm/connect/0.5.10/package/lib/connect/middleware/router.js:157:15)
    at pass (/Users/avishai/.node_libraries/.npm/connect/0.5.10/package/lib/connect/middleware/router.js:162:10)
    at Object.router [as handle] (/Users/avishai/.node_libraries/.npm/connect/0.5.10/package/lib/connect/middleware/router.js:168:6)
    at next (/Users/avishai/.node_libraries/.npm/connect/0.5.10/package/lib/connect/index.js:218:15)
    at Server.handle (/Users/avishai/.node_libraries/.npm/connect/0.5.10/package/lib/connect/index.js:231:3)
    at Server.emit (events.js:45:17)
    at HTTPParser.onIncoming (http.js:1078:12)
    at HTTPParser.onHeadersComplete (http.js:87:31)

A function that seems to throw an error:

function books(app){
    app.get('/:query', function(req, res, next) {

        res.writeHead(200, { 'Content-Type': 'text/html' });

        var rediff = require('./searcher-rediff');
        rediff.on('on_book', function(item){
            res.write(item + "<br/>");
        });
        rediff.on('completed', function(){
            res.end();
        });
        rediff.search(escape(req.params.query));

    });
}

UPDATE

Now I noticed that on the first request, I get the following:

SyntaxError: Unexpected strict mode reserved word
    at Module._compile (module.js:369:25)
    at Object..js (module.js:380:10)
    at Module.load (module.js:306:31)
    at Function._load (module.js:272:10)
    at require (module.js:318:19)
    at Object.<anonymous> (/Users/avishai/Downloads/anismiles-jsdom-based-screen-scraper-f0c79d3/searcher.js:2:15)
    at Module._compile (module.js:374:26)
    at Object..js (module.js:380:10)
    at Module.load (module.js:306:31)
    at Function._load (module.js:272:10)
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3 answers

EventEmittter. ,

  • .js EventEmitter (-26) Searcher.prototype = .EventEmitter;

  • -rediff.js, -flipkart.js -landmarkonthenet.js searcher.js, EventEmitter.

  • ' EventEmitter.

, , - , explorer.js EventEmitter , , 'on .

+1

, , , EventEmmiter. , 'on'.

+2

EventEmitter.

require('./searcher-rediff'); Javascript. , searcher-rediff, EventEmitter.

searcher-rediff.js, , EventEmitter, .

, , - ...

 var rediff = require('./searcher-rediff').searcher;
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