Typescript - how to correctly use jsPDF in Angular2?
<p>I have created an Angular2 application that generates JSON data. I want to save this JSON output into a file, preferably a PDF file. This application is written using Typescript.</p>

<p>I have used jsPDF for writing the JSON data into a PDF file. I have installed jsPDF package via npm using <code>npm install jspdf --save</code>. I have also added necessary links in index.html page. I made these changes to my application when it was running. I was able to save the JSON data to the file.</p>

<p>When I stopped and restarted the application, it did not start as expected. I got the following error:</p>

<blockquote>
  <p>json-excel@1.0.0 start C:\Users*****\Documents\Projects\Angular\json-to-pdf</p>
  
  <p>tsc &amp;&amp; concurrently "npm run tsc:w" "npm run lite"</p>
  
  <p>app/components/app.component.ts(35,19): error TS2304: Cannot find name 'jsPDF'.</p>
</blockquote>

<p>I'm  adding the code that I have used. </p>

<p>package.json:</p>

<pre><code>"dependencies": {
     "@angular/common": "2.0.0-rc.1",
     "@angular/compiler": "2.0.0-rc.1",
     "@angular/core": "2.0.0-rc.1",
     "@angular/http": "2.0.0-rc.1",
     "@angular/platform-browser": "2.0.0-rc.1",
     "@angular/platform-browser-dynamic": "2.0.0-rc.1",
     "@angular/router": "2.0.0-rc.1",
     "@angular/router-deprecated": "2.0.0-rc.1",
     "@angular/upgrade": "2.0.0-rc.1",
     "angular2-in-memory-web-api": "0.0.7",
     "bootstrap": "^3.3.6",
     "es6-shim": "^0.35.0",
     "jquery": "^2.2.4",
     "jspdf": "^1.2.61",
     "reflect-metadata": "^0.1.3",
     "rxjs": "5.0.0-beta.6",
     "systemjs": "0.19.27",
     "zone.js": "^0.6.12"
}
</code></pre>

<p>index.html:</p>

<pre><code>&lt;html&gt;
  &lt;head&gt;
    &lt;title&gt;JSON to PDF&lt;/title&gt;
    &lt;meta charset="UTF-8"&gt;
    &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;

    ....

    &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.0.272/jspdf.debug.js"&gt;&lt;/script&gt;

    ....

  &lt;/head&gt;

  &lt;!-- 3. Display the application --&gt;
  &lt;body class="bg"&gt;
    &lt;div&gt;
      &lt;app&gt;Loading...&lt;/app&gt;
    &lt;/div&gt;
  &lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p>app.component.ts:</p>

<pre><code> import {Component} from '@angular/core';
 @Component({
   selector: 'app',
   template: `&lt;button (click)="createFile()"&gt;Export JSON to PDF&lt;/button&gt;`
 })
 export class AppComponent {
     public item = {
        "Name" : "XYZ",
         "Age" : "22",
         "Gender" : "Male"
     }
     constructor() {}
     createFile(){
        var doc = new jsPDF();
        var i=0;
        for(var key in this.item){
           doc.text(20, 10 + i, key + ": " + this.item[key]);
           i+=10;
        }
        doc.save('Test.pdf');
    }
 }
</code></pre>

<p>I think some import statement is missing in the app.component.ts file. Can someone point to the correct import statement if that is what is missing? If that is the error that I have made, can I know how to correctly us jsPDF in Angular2?</p>

<p>Thank you.</p>