Trying to install node.js.
Did brew install node
It seems to have worked.
However, received this message upon its completion
The cleanest solution is adding the following between the two lines you posted:
export PATH="/usr/local/share/npm/bin:$PATH"
That way everything stays readable and you prepend it to PATH just like the program suggested it. And if you ever want to undo the change you just remove that line instead of editing a possibly long line.