Answer to Question #314572 in HTML/JavaScript Web Application for hari

Question

product of array items

given an array integers, write a JS program to get the product of the given integers in the array

sample input1

[1,2,3]

sample output1

1*2*3 = 6

"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++];

}

function main() {

 let integers = JSON.parse(readLine());

 /* Please do not modify anything above this line */

 /* Write your code here and log the output */

}

INPUT:

[1,2,3]

OUTPUT:

1*2*3 = 6

INPUT:

[-1,-2,-3]

OUTPUT:

-1*-2*-3 = -6 SHOULD BE LIKE THIS

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++];

}




function main() {

 let integers = JSON.parse(readLine());


 const productArrayItems = arr => arr.reduce((a, b) => a * b) 

 console.log(productArrayItems(integers)); // [1, 2, 3]
 console.log(productArrayItems(integers)); // [-1,-2,-3]

}