Answer to Question #174677 in HTML/JavaScript Web Application for phani

Question

Given an array 
myArray of numbers, write a JS program to perform the following steps and log the result.
Multiply each value with 9.
Subtract 20 from each value.
Multiply each value with 7.
Log the values of the resulting array separated by a space.
Input
The input will be a single line containing an array myArray
Output
The output should be a single line with values separated by a space
Constraints
Each value in the array must be a number
Sample Input 
[ 12, 2, 2, 4, 1 ]
Sample Output 
616 -14 -14 112 -77
"use strict";
process.stdin.resume();
process.stdin.on("data", (inputStdin) => {
  inputString += inputStdin;
});
process.stdin.on("end", (_) => {
  inputString = inputString.trim().split("\n").map((str) => str.trim());
  main();
});
function readLine() {
  return inputString[currentLine++];
}
function main() {
  const myArray = JSON.parse(readLine());
  /* Write your code here */
}

Answer 1

"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((str) => str.trim());
    main();
});

function readLine() {
    return inputString[currentLine++];
}
/* Please do not modify anything above this line */

function main() {
    const nestedArray = JSON.parse(readLine());
 /* Write your code here */

    const resultArray = nestedArray.map(arr => {
        if ( arr.some(item => item % 2 === 0) ) {
            return arr.reduce( (acc, current) => acc * current )
        } else {
            return 0
        }
    });

    console.log(resultArray);
}