Why we use Rest API over JSOM

The REST Services in SharePoint offer nearly the same functionality like JSOM. Furthermore, it is easier to use for a developer not coming from the SharePoint world since REST interfaces are standardized. This makes the choice of technology easier than for JSOM.

Reference Url: http://www.c-sharpcorner.com/UploadFile/sagarp/csom-vs-jsom-vs-ssom-vs-rest/

Nitin Sontakke10y ago

I think it is like saying, "Why do we need Phones when we have English?"

Note that "phones" is a communication channel and "English" is a communication language.

"English" is not bound to a single communication channel. And neither a communication channel bound to a single language.

Hope you understand what I am trying to say.

Nilesh Sawardekar10y ago

http://www.slideshare.net/rmaclean/json-and-rest