cd /opt
wget https://nodejs.org/dist/v10.15.3/node-v10.15.3-linux-x64.tar.gz
tar -xvf node-v10.15.3-linux-x64.tar.gz
ln -s /opt/node-v10.15.3-linux-x64/bin/node /usr/bin/node
ln -s /opt/node-v10.15.3-linux-x64/bin/npm /usr/bin/npm

https://segmentfault.com/a/1190000012198662