Learners Store

By using filter method

let sampleArray = [5, 5, 2, 4, 5];
let largestNumber = Math.max(...sampleArray);

let count = sampleArray.filter(number => number === largestNumber).length;
console.log("Count of Largest numbers in the Array : ", count);

// Count of Largest numbers in the Array : 3

By using reduce method

let sampleArray = [5, 5, 2, 4, 5];
let largestNumber = Math.max(...sampleArray);

let result = sampleArray.reduce((count, currentValue) => {
       return count + (currentValue === largestNumber)
},0);

console.log("Count of Largest numbers in the Array : ", result);

// Count of Largest numbers in the Array : 3