js10-throw.js

// Tutorials > 10 Days of Javascript > Day 3: Throw
// Practice throwing errors` in JavaScript.
//
// https://www.hackerrank.com/challenges/js10-throw/problem
// challenge id: 20998
//

'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++];
}
// (skeliton_head) ----------------------------------------------------------------------

/*
 * Complete the isPositive function.
 * If 'a' is positive, return "YES".
 * If 'a' is 0, throw an Error with the message "Zero Error"
 * If 'a' is negative, throw an Error with the message "Negative Error"
 */
function isPositive(a) {

    if (a == 0) throw Error("Zero Error");
    if (a < 0) throw Error("Negative Error");
    return "YES";
}

// (skeliton_tail) ----------------------------------------------------------------------
function main() {
    const n = +(readLine());

    for (let i = 0; i < n; i++) {
        const a = +(readLine());

        try {
            console.log(isPositive(a));
        } catch (e) {
            console.log(e.message);
        }
    }
}