update documentation for using a promise while saving

[iwan-uschka]

https://rawgit.com/MrRio/jsPDF/master/docs/jsPDF.html#save is not up to date regarding the option returnPromise:

doc.save(fileName, { returnPromise: true }).then(scb, ecb);

[Uzlopak]

will be part of #2194

[Uzlopak]

Version 1.5.3 got released and fixes the issue.

[theFallen78]

@arasabbasi
i still get then error
VM1241:1 Uncaught TypeError: Cannot read property 'then' of undefined

[iwan-uschka]

I am using version 1.5.3 and the following works for me:

var doc = new jsPDF({...});
doc.save(fileName, { returnPromise: true }).then(scb, ecb);

Which version do you use? Can you provide some code?

[theFallen78]

@iwan-uschka thank you for the promt response am not sure but i dowloaded the zipfile from the website on 01/06/19