The result should display the top 5 application names based on the count property found within the ImageDetails object

data = {
"ImageDetails": [
    {
        "application": "unknownApp,
        "count": 107757,        
    },
    {
        "application": "app6",
        "count": 1900,
    },
    {
        "application": "app8",
        "count": 0,
    },
    {
        "application": "app3",
        "count": 100,
    },
    {
        "application": "app9"
        "count": 0,
    },
    {
        "application": "app1"
        "count": 0,
    },
    {     
        "application": "app10"
        "count": 0,
    },
    {
        "application": "app7",
        "count": 0,
    }
  ]
}

Upon subscribing to the API, the data retrieved is shown above.

The desired output should display the top 5 applications based on the count property in the ImageDetails section. Expected Output: [unknownApp, app6, app3, app8, app9]

javascriptangulartypescript

Answer №1

Your input data was incorrect, but I have rectified the issue by adding missing quotes and commas.

If the data received from the API is still not structured correctly, it might be necessary to reach out to the data provider for assistance.

structuredClone function is utilized for deep copying an array, ensuring that any modifications made on the copied array do not affect the original one.

You can easily sort the data based on the count attribute, and then use slice to retrieve the top 5 entries.

Subsequently, apply map function to extract only the application names from the data.

const apps = data.ImageDetails

const sortedApps = structuredClone(apps).sort((a, b) => {
  return b.count - a.count
})

const top5Apps = sortedApps.slice(0, 5)

const top5AppNames = top5Apps.map(app => app.application)

console.log(top5AppNames)
<script>
  // Data here to show the js code on top
  const data = {
    "ImageDetails": [{
        "application": "unknownApp",
        "count": 107757,
      },
      {
        "application": "app6",
        "count": 1900,
      },
      {
        "application": "app8",
        "count": 0,
      },
      {
        "application": "app3",
        "count": 100,
      },
      {
        "application": "app9",
        "count": 0,
      },
      {
        "application": "app1",
        "count": 0,
      },
      {
        "application": "app10",
        "count": 0,
      },
      {
        "application": "app7",
        "count": 0,
      }
    ]
  }
</script>

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