title: Finding JSON Array Object Values by KeyName
body: <p>I am looking for a HashMap sort of implementation in Javascript for JSON for the following case. </p>
  
  <p>I have the JSON with following structure:</p>
  
  <pre><code>{
  "level1": {
      "level2": [{
          "product1": [
              "item1",
              "item2"
          ]
      }, {
          "product2": [
              "item1",
              "item2"
          ]
      }, {
          "product3": [
              "item5",
              "item6"
          ]
      }]
  }
  }
  </code></pre>
  
  <p>For my use case, I get a value , say 'product3', I want to find values for this key i.e "item5", "item6". I have a way, that i can loop through the entire level2 object but want to know if I can simply use key to find values.  </p>