2nd highest number from array
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); // 55Return Largest Numbers in Arrays
// Return Largest Numbers in Arrays
function largestOfFour(arr) {
let largestArr = [];
for (let i = 0; i < arr.length; i++) {
largestArr.push(Math.max(...arr[i]));
}
return largestArr;
}
largestOfFour([
[4, 5, 1, 3],
[13, 27, 18, 26],
[32, 35, 37, 39],
[1000, 1001, 857, 1],
]);
// OR
function largestOfFour(arr) {
return arr.map(function (group) {
return group.reduce(function (prev, current) {
return current > prev ? current : prev;
});
});
}Copyright © 2021 Codeinu
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