Arrays || JS Hackerrank Solution

 Task

Complete the getSecondLargest function in the editor below. It has one parameter: an array, , of

numbers. The function must find and return the second largest number in .

Input Format

Locked stub code in the editor reads the following input from stdin and passes it to the function:

The first line contains an integer, , denoting the size of the array.

The second line contains space-separated numbers describing the elements in .

Constraints

, where is the number at index .

The numbers in are not distinct.

Output Format

Return the value of the second largest number in the array.

Sample Input 0

5

2 3 6 6 5

Sample Output 0

5

Solution:

'use strict';     process.stdin.resume();   process.stdin.setEncoding('utf-8');     let inputString = '';   let currentLine = 0;    process.stdin.on('data', inputStdin => {      inputString += inputStdin;   });     process.stdin.on('end', _ => {     inputString = inputString.trim().split('\n').map(string => {         return string.trim();     });          main();       });     function readLine() {     return inputString[currentLine++];   }     function getSecondLargest(nums) {     // Complete the function     var m=Math.max.apply(null,nums);     for(var i=0;i<nums.length;i++){         if(nums[i]==m){             nums[i]=-Infinity;         }     }     var sec=Math.max.apply(null,nums);     return sec;   }     function main() {     const n = +(readLine());     const nums = readLine().split(' ').map(Number);          console.log(getSecondLargest(nums));   }