title: npm install not working. Says that I need to check permissions?
body: <p>I'm trying to install eslint on my machine right now but it is saying that I need to check permissions because its missing write access to /user/local/lib/node_modules. Does anyone know how to fix this? Thanks!</p>
  
  <pre><code>npm install -g eslint
  </code></pre>
  
  <pre><code>npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules
  npm ERR! path /usr/local/lib/node_modules
  npm ERR! code EACCES
  npm ERR! errno -13
  npm ERR! syscall access
  npm ERR! Error: EACCES: permission denied, access '/usr/local/lib/node_modules'
  npm ERR!  { [Error: EACCES: permission denied, access '/usr/local/lib/node_modules']
  npm ERR!   stack:
  npm ERR!    "Error: EACCES: permission denied, access '/usr/local/lib/node_modules'",
  npm ERR!   errno: -13,
  npm ERR!   code: 'EACCES',
  npm ERR!   syscall: 'access',
  npm ERR!   path: '/usr/local/lib/node_modules' }
  npm ERR!
  npm ERR! The operation was rejected by your operating system.
  npm ERR! It is likely you do not have the permissions to access this file as the current user
  npm ERR!
  npm ERR! If you believe this might be a permissions issue, please double-check the
  npm ERR! permissions of the file and its containing directories, or try running
  npm ERR! the command again as root/Administrator (though this is not recommended).
  
  npm ERR! A complete log of this run can be found in:
  npm ERR!     /Users/mkaplan/.npm/_logs/2019-03-03T18_05_46_487Z-debug.log
  
  </code></pre>