JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://defiantjs.com/defiant.js/dist/defiant-latest.min.js"></script>
Found <span id="count"></span> items.

JavaScript

var data = {
      "items": [
         {
            "item-type": "hardware",
            "color": "red"
         },
         {
            "item-type": "software",
            "color": "blue"
         }
      ]
   },
   found = JSON.search(data, '//*[@d:name="item-type"');

document.getElementById('count').innerHTML = found.length;