Find Second largest number in array at most n+log₂(n)−2 comparisons [closed]

Answer 1

Use the following function

function getSecondLargest(nums) {
var set = new Set(nums)
var sort = [...set].sort((a, b) => a - b)
var length = sort.length
if (length==1) {
    return `Given Array contain only one element :  ${sort[length - 1]}`
}
    return sort[length - 2]
}