I am new to SPFx and I am getting an error while trying to add jQuery and external JS in SPFX.

Example my web-part name is FlipBookWebPart and I am trying to add turn.js and modernizr.js into the FlipBookWebPart.ts.

I have declared the modernizr in config.json like:

enter image description here

And below is an error that I received when add the web-part in local-workbench.

enter image description here

In the webpart.ts, I add jQuery and modernizr using following code

 import * as jQuery from "jquery";
 import "jqueryui";

2 Answers 2


Try following steps:

  1. Run npm i modernizr and then npm i @types/modernizr --save-dev.
  2. Then add its reference to config.json in externals{} like:
    "externals": {
        "modernizr": {
          "path": "node_modules/modernizr/src/modernizr.js",
          "globalName": "modernizr"
  1. Then reference the file in your WebPart.ts file like:
    import * as modernizr from 'modernizr';


Use existing JavaScript libraries in SharePoint Framework client-side web parts.

  • Thanks.. I will check on that
    – crysis08
    Jan 17, 2020 at 12:12

It seems like modernizr script from the CDN does not contain any modules. Try to use SPComponentLoader.

import { SPComponentLoader } from '@microsoft/sp-loader';

Inside your render() or onInit() method (onInit() is more preferable, because it runs only once):

SPComponentLoader.loadScript('https://code.jquery.com/jquery-2.2.4.min.js', {
    globalExportsName: 'jQuery'
}).then(($: any) => {
    $(function() {
        console.log('jQuery is loaded');
    SPComponentLoader.loadScript('https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.8.3/modernizr.js', {
        globalExportsName: 'Modernizr'
    }).then((Modernizr: any) => {
        if (Modernizr.touchevents) {
        } else {
            console.log('no touch');

Or you can just use modernizr without loading jQuery.

Also, some info on adding non-module scripts.

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