title: How to update globally installed npm packages
body: <p>Command:  <code>npm outdated -g</code></p>
  
  <p>Output: </p>
  
  <pre><code>Package           Current  Wanted  Latest  Location
  
  @angular/cli        1.3.1   1.7.4   7.0.5
  create-react-app    1.5.2   1.5.2   2.1.1
  eslint              5.6.0   5.9.0   5.9.0
  expo-cli            2.2.0   2.3.8   2.3.8
  gulp-cli            1.4.0   1.4.0   2.0.1
  how-to-npm          2.5.0   2.5.1   2.5.1
  mocha               3.5.0   3.5.3   5.2.0
  nodemon            1.18.3  1.18.6  1.18.6
  now                11.4.6  11.5.2  12.0.1
  serve              10.0.1  10.0.2  10.0.2
  typescript          2.4.2   2.9.2   3.1.6
  yarn                1.9.4  1.12.3  1.12.3
  </code></pre>
  
  <p>How do I update these outdated packages in npm?</p>