IMO there is no reason to think that is the case. If you feel comfortable doing all in JS it sure is a fitting choice. But for example also Rails comes with rea

IMO there is no reason to think that is the case. If you feel comfortable doing all in JS it sure is a fitting choice. But for example also Rails comes with real time functionality these days. I still strongly believe there is no right or better in the web, just different approaches for the same solutions. If you are not yet fully focused on JS, but have no idea what else, just pick a community you think you would like to be part of. (This for example disables me to use PHP, JS & .NET)