Command not found after npm install in zsh

I'm having some problems installing vows via npm in zsh. Here's what I get. I tried installing it with and without the -g option. Do you have any idea what's wrong here?

[❤  ~/Desktop/sauce-node-demo:master] npm install -g vows
npm http GET https://registry.npmjs.org/vows
npm http 304 https://registry.npmjs.org/vows
npm http GET https://registry.npmjs.org/eyes
npm http GET https://registry.npmjs.org/diff
npm http 304 https://registry.npmjs.org/eyes
npm http 304 https://registry.npmjs.org/diff
/usr/local/share/npm/bin/vows -> /usr/local/share/npm/lib/node_modules/vows/bin/vows
[email protected] /usr/local/share/npm/lib/node_modules/vows
├── [email protected]
└── [email protected]
[❤  ~/Desktop/sauce-node-demo:master] vows
zsh: command not found: vows

Thanks

Solution 1:

add source /home/YOUUSERNAME/.bash_profile at the beginning of ~/.zshrc

And all missing commands will be detected.

For Mac users : add source /Users/YOUUSERNAME/.bash_profile

Solution 2:

If you installed Node.js using Homebrew, npm binaries can be found in /usr/local/share/npm/bin. You should make sure this directory is in your PATH environment variable. So, in your ~/.zshrc file add export PATH=/usr/local/share/npm/bin:$PATH.