Answer to Question #303249 in HTML/JavaScript Web Application for king

Question

concatenate and remove Duplicates

Given two arrays arr1 and arr2 of positive integers write a JS program to concatenate two rows and remove duplicates from the concatenated array. Log the array with unique items in ascending order

input1

[1,4,7,3,7,3,3]

[2,4,5,5,3,2,1]

output1

[1,2,3,4,5,7]

"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 arr1 = JSON.parse(readLine());

 let arr2 = JSON.parse(readLine());

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

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

}

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 arr1 = JSON.parse(readLine());
    let arr2 = JSON.parse(readLine());
    /* Please do not modify anything above this line */

    /* Write your code here and log the output */
    const newArr = Array.from(new Set(arr1.concat(arr2))).sort()
    console.log(newArr)
}