Does anyone has implementing to get metadata from .EPUB extension with Javascript? i have tried many ways, but its doesn't work. I need implement it directly not by backend javascript, such as Node.js.
The question is of course what meta-data do you want to retrieve ?
There is a library called epub.js for the client side witch seems pretty friendly :
https://github.com/futurepress/epub.js
Take a look at the Book.getMetadata() in it's documentation.