title: Wait seconds before running next task on scripts package.jscon
body: <p>What I want to do is when I run <code>npm run dev</code> to execute those both tasks I need to wait for 5 seconds until next task runs.</p>
  
  <p>Run the <code>npm run server</code> wait for 5 seconds and then <code>npm run client</code></p>
  
  <pre><code>  "scripts": {
      "start": "node ./bin/www",
      "server": "nodemon start",
      "client": "gulp",
      "dev": "concurrently 'npm run server' 'npm run client'", 
  }
  </code></pre>