How to access and instantiate a javascript class from TypeScript?

Question

I'm using jsPDF and I've added its jspdf.min.js file on the page.

How can I use it from within a typescript class? jsPDF is unknown it complains:

  btnPrintReportClick() {
        var pdf = new jsPDF();
        pdf.fromHTML($('.container').html(), 15, 15, { 'width': 170 });
        pdf.save('file_name.pdf');
    }

You'll have to give us more information for us to help you. In general, TypeScript requires that you have a definitions file for any JavaScript code you're including, since TypeScript overlays a type system on JavaScript. More: typescriptlang.org/docs/handbook/declaration-files/… — T.J. Crowder
– T.J. Crowder, Commented Mar 20, 2017 at 17:00

Nitzan Tomer · Accepted Answer · 2017-03-20 17:00:24Z

2

You'll need to use the definition file for it.

From your question I assume that you're loading jspdf simply by placing a script tag in your page, and in that case just add this triple-slash-directive to your typescript file:

/// <reference path="PATH/TO/jspdf.d.ts />

answered Mar 20, 2017 at 17:00

Nitzan Tomer

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