How use jquery npm in node.js ?

Question

for example i want use jquery function extend

var object = $.extend({}, object1, object2);

But :

 var $ = require('jquery');

console : $

function ( w ) {
                if ( !w.document ) {
                    throw new Error( "jQuery requires a window with a doc…

$.extend undefined

What's your version of jQuery? And I quote from npmjs.org/package/jquery: "To use jQuery in Node, browser extensions, and other non-browser environments, use only 2.x releases. 1.x does not support these environments." — Jasdeep Khalsa
– Jasdeep Khalsa, Commented Sep 2, 2014 at 11:29
Also please write out the full error message clearly, this will help get us to an answer — Jasdeep Khalsa
– Jasdeep Khalsa, Commented Sep 2, 2014 at 11:30
For reference sake the full error message was: "jQuery requires a window with a document" — Jasdeep Khalsa
– Jasdeep Khalsa, Commented Sep 2, 2014 at 16:39

Jasdeep Khalsa · Accepted Answer · 2014-09-02 16:35:27Z

3

You can get this to work but you'll need another module called jsdom because jQuery needs a DOM window to operate, it's not designed for Node.js. Install it with:

npm install jsdom --save

Please note: I'm using the latest jQuery 2.1.1 and jsdom 1.0.0-pre.6 both installed via npm

And then in your Node.js file e.g. app.js:

var jsdom = require('jsdom'),
    window = jsdom.jsdom().parentWindow,
    $ = require('jquery')(window);

var object = $.extend({},{'foo':'bar'},{'cat':'dog'});
console.log(object);

Then in Node.js you run it:

node app.js

And see the output:

{ foo: 'bar', cat: 'dog' }

Perhaps the better option is to use something like cheerio which is a "fast, flexible, and lean implementation of core jQuery designed specifically for the server". You can install this with npm install cheerio.

answered Sep 2, 2014 at 16:35

Jasdeep Khalsa

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Comments

throrin19 · Accepted Answer · 2014-09-02 11:44:47Z

2

jquery is only for client side. For server side (node.js0, it used for unitTest scripting with browserify, ... because node.js has no window, document and DOM layer. I recommand you to use underscore.js :

npm install underscore

Underscore.js has a extend method works like jquery.extend. :

var _ = require('underscore');
var obj = _.extend({}, object1, object2);

answered Sep 2, 2014 at 11:44

throrin19

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