installing node in slackware

http://yoember.com/nodejs/the-best-way-to-install-node-js/

https://codewithintent.com/how-to-install-update-and-remove-node-js-from-linux-or-ubuntu/

http://juniway.blogspot.mx/2015/12/curl-48-unknown-option-was-passed-in-to.html