Returning the highest number from object properties value – JavaScript

Suppose, we have an object that contains rating of a property over some criteria like this −

const rating = {
   "overall": 92,
   "atmosphere": 93,
   "cleanliness": 94,
   "facilities": 89,
   "staff": 94,
   "security": 92,
   "location": 88,
   "valueForMoney": 92
}

We are required to write a JavaScript function that takes in one such object and returns the key value pair that has the highest value.

For example, for this very object, the output should be −

const output = {
   "staff": 94
};

Example

Following is the code −

const rating = {
   "overall": 92,
   "atmosphere": 93,
   "cleanliness": 94,
   "facilities": 89,
   "staff": 94,
   "security": 92,
   "location": 88,
   "valueForMoney": 92
}
const findHighest = obj => {
   const values = Object.values(obj);
   const max = Math.max.apply(Math, values);
   for(key in obj){
      if(obj[key] === max){
         return {
            [key]: max
         };
      };
   };
};
console.log(findHighest(rating));

Output

This will produce the following output in console −

{ cleanliness: 94 }

AmitDiwan

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Updated on: 18-Sep-2020

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