javascript - 类型错误 : Cannot read property 'Roboto-Regular.ttf' of undefined

Question

尝试使用 JS API PdfMake 构建 PDF :

<script type="text/javascript" src="/app/js/vfs_fonts.js"></script>
<script type="text/javascript" src="/app/js/pdfmake.min.js"></script>

然后根据this Helloworld ，我跑:

 var docDef={ content: 'This is an sample PDF printed with pdfMake' }
 pdfMake.createPdf(docDef).download('optionalName.pdf');

我遇到了这个错误:

Uncaught TypeError: Cannot read property 'Roboto-Regular.ttf' ofundefined

是否需要Roboto-Regular.ttf文件？

如果是，放在哪里？

Answer 1

我解决了在 vfs_fonts 之前导入 pdfmake 的问题。

<script type="text/javascript" src="/app/js/pdfmake.min.js"></script>
<script type="text/javascript" src="/app/js/vfs_fonts.js"></script>