When we browse content on any website we are on the client-side of the Internet architecture. The typical architecture comprises a server and clients. FileSaver.js is a library that helps clients save a file. The speed and efficiency of this library are commendable. In any HTTP response, the content-disposition response header highlights whether the content is inline displayed or as an attachment. For downloader libraries, attachments should be included in the header.
This downloader library is used for heavy files, the files which are bigger than blobs. If you have limited random access memory then you can use streamsaver.js. The data/file is saved into the physical drive using the proper advanced settings. The library uses streaming APIs which support progress, canceling, and notification features. The data is downloaded and saved asynchronously using these APIs.
This library makes use of the Canvas-toBlob function in HTML5 or Canvas-toBlobHD function when the browser is not supporting the latter natively. In addition to this, the blob support function is the primary requirement and is present in both of the functions. With the inclusion of Blob.js, it becomes a cross-browser functionality.
This library is included with various types of libraries like Canvas-toBlob.js. It is required for browsers that do not support Canvas-toBlob. This library supports all the browsers and uses a W3C blob interface which is unsupported by the browser natively.
This library is a cross-server platform one and the process of downloading a file becomes smooth. The experience of the user is enhanced using the callback functionality. Since it is using jQuery, the user can actually see the progress of the download, and if any error occurs then it is also reflected in real-time. A new window pops up and the download happens in it, users need not leave the current page.