Segundo número más alto de la matriz
var arr = [1,2, -3, 15, 77, 12, 55];
var highest = 0, secondHighest = 0;
// OR var highest = arr[0], secondHighest = arr[0];
for(var i=0; i<arr.length; i++){
if(arr[i] > highest){
secondHighest = highest;
highest = arr[i];
}
if(arr[i] < highest && arr[i] > secondHighest){
secondHighest = arr[i];
}
}
console.log('>> highest number : ',highest); // 77
console.log('>> secondHighest number : ',secondHighest); // 55
Creepy Civet