how to use jsPDF and jspdf-autotable in angular 5

I am trying to use jsPDF and jspdf-autotable in my Angular 5.2.0 project. My package.json is below (related parts):

"dependencies": {
    ...
    "jspdf": "^1.3.5",
    "jspdf-autotable": "^2.3.2"
    ...
}

My angular-cli.json is below (related parts):

"scripts": [
    ...
    "../node_modules/jspdf/dist/jspdf.min.js",
    "../node_modules/jspdf-autotable/dist/jspdf.plugin.autotable.js"
    ...
  ]

My component (related parts ):

import * as jsPDF from 'jspdf';
import 'jspdf-autotable';

@Component({
    selector: "energy-login",
    templateUrl: "./login.component.html",
    styleUrls: ["./login.component.scss"]
})
export class MyComponent implements OnInit {

    constructor() {}

    ngOnInit() {}

    downloadPDF() {

        let columns = ["ID", "Name", "Country"];
        let rows = [
            [1, "Shaw", "Tanzania"],
            [2, "Nelson", "Kazakhstan"],
            [3, "Garcia", "Madagascar"],
        ];

        let doc = new jsPDF('l', 'pt');
        doc.autoTable(columns, rows); // typescript compile time error
        doc.save('table.pdf');
    }
}

It says:

[ts] Property 'autoTable' does not exist on type 'jsPDF'.

I tried to replace imports in my component with

// import * as jsPDF from 'jspdf';
// import 'jspdf-autotable';
declare var jsPDF: any;

then there is no compile time error but while running downloadPDF() function it says :

ERROR ReferenceError: jsPDF is not defined

Solution

To work with jspdf-autotable in angular 5, one must install jspdf and jspdf-autotable via npm

npm install jspdf-autotable --save

also add the jspdf and jspdf-autotable files to the scripts array in angular-cli.json

"scripts": [
    "../node_modules/jspdf/dist/jspdf.min.js",
    "../node_modules/jspdf-autotable/dist/jspdf.plugin.autotable.js"
],

and in component never import jspdf or jspdf-autotable just

declare var jsPDF: any;

Of course before working with jspdf-autotable one should install jspdf and for development @types/jspdf via npm

npm install jspdf --save
npm install @types/jspdf --save-dev