Nodejs parsing dom error with strict mode

Question

I am really new to nodejs, and i am putting myself through a crash course these 3-4 days to get a bit better at it... Trying to run this code:

(function () {

    var jsdom = require('jsdom');

    jsdom.env({  
      html: '<html><body><h1>Hello World!</h1><p class="hello">Heya Big World!</body></html>'
      //scripts: [
        //'http://code.jquery.com/jquery-1.5.min.js'
      //]
    }, function (err, window) {
      //var $ = window.jQuery;
         var $ = require('jquery')(window)
      $('body').append("<div class='testing'>Hello World</div>");
      console.log($(".hello").text()); // outputs Hello World
    });

}());

I get this error:

/root/node_modules/jsdom/lib/jsdom/living/helpers/validate-names.js:2
const xnv = require("xml-name-validator");
^^^^^
SyntaxError: Use of const in strict mode.
    at exports.runInThisContext (vm.js:73:16)
    at Module._compile (module.js:443:25)
    at Object.Module._extensions..js (module.js:478:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Module.require (module.js:365:17)
    at require (module.js:384:17)
    at Object.<anonymous> (/root/node_modules/jsdom/lib/jsdom/level1/core.js:8:20)
    at Module._compile (module.js:460:26)
    at Object.Module._extensions..js (module.js:478:10

And i am clueless to solve it. Sorry for the nooby question...

kindly refer to http://stackoverflow.com/questions/22603078/syntaxerror-use-of-const-in-strict-mode — Zuned Ahmed, Feb 27 '15 at 01:55
@ZunedAhmed I am not using strict mode, its being used in a module... id really rather not edit module source code... — Evan, Feb 27 '15 at 01:56
Note that NodeJS isn't supported any more by jsdom (you can use a legacy version) - jsdom considers NodeJS legacy software and only support io.js as of version 4. https://github.com/tmpvar/jsdom/blob/master/Changelog.md — Benjamin Gruenbaum, Feb 27 '15 at 01:59
You can change `const` to `var`. It also might work if you start node.js with the `--harmony` flag. And, what version of node.js are you running? — jfriend00, Feb 27 '15 at 02:45
@jfriend00 Thank you, i will let you know when i test that if its correct so you can add that as an answer. — Evan, Feb 27 '15 at 03:00

score 4 · Accepted Answer · answered Mar 01 '15 at 01:07

4

For me help reinstall jsdom from "latest" to old version "3.1.2"

1) Delete jsdom folder in node_modules

2) Change dependencies in package.json to:

"jsdom": "3.1.2"

3) And of course run "npm install"

Hope it's help you!

answered Mar 01 '15 at 01:07

Roman Dunin

56
1
1

I had the same problem using exactly version jsdom@3.1.2. – Rafael Eyng Oct 16 '15 at 13:01

Jack Vial · Answer 2 · 2015-03-03T16:18:48.677

The lastest version of jsdom no longer works with Node.js. This is from their github page.

Note that as of our 4.0.0 release, jsdom no longer works with Node.js™, and instead requires io.js. You are still welcome to install a release in the 3.x series if you are stuck on legacy technology like Node.js™

So as Roman Dunin said, roll back the to the 3.x version if you want to use jsdom with Node.js. Version 3.1.2 was the last release before version 4.0.0

Nodejs parsing dom error with strict mode

2 Answers2