How do I write the following code for node.js?

Question

Hi I am having issues getting stdin input in a program. I have the following ruby snippet that I want to translate to javascript that runs on node.js.

t = $stdin.readline().to_i
t.times do ||
   n,m = $stdin.readline().split().map{|num| num.to_i}
   m_arr = $stdin.readline().split().map{|num| num.to_i}
end

I read in t which is the number of test cases. In the t.times block, I read two integers on the same line, n &m, then on the following line I read an array of integers. I do this t times. So for the following input.

2
4 1
1
6 2
2 3

2 would be read into t in the first $stdin.readline. Then 4 would be read into n and 1 would be read into n in the second $stdin.readline. Then [1] would be read into m_arr in the third $stdin.readline. We would repeat the last two $stdin.readline for one more time. So in the second time, 6 would be read into m and 2 would be read into n, and then [2,3] would be read into m_arr. Can someone tell how to do this in javascript for node.js in the best possible way.

Answer 1

After some research and getting to understand that node.js is event driven. I came up with the following solution.

const readline = require('readline');

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  terminal: false
});

input = [];
rl.on('line',function(line){
    input.push(line);
}).on('close',function(){
    // process the input data in main
    main(input);
    process.exit(0);
});

function main(){

}