Count objects

Complete the function in the editor. It has one parameter: an array, $a$, of objects. Each object in the array has two integer properties denoted by $x$ and $y$. The function must return a count of all such objects $a$ in array $a$ that satisfy $o.x == o.y$.

##Input Format

The first line contains an integer denoting $n$. Each of the $n$ subsequent lines contains two space-separated integers describing the values of $a$ and $y$.

Constraints

• $5 < n < 10$
• $1 < x, y < 100$

Output Format

Return a count of the total number of objects $o$ such that $o.x == o.y$. Locked stub code in the editor prints the returned value to $STDOUT$.

Dev

'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++];
}

/*
 * Return a count of the total number of objects 'o' satisfying o.x == o.y.
 *
 * Parameter(s):
 * objects: an array of objects with integer properties 'x' and 'y'
 */
function getCount(objects) {

    let count = 0;

    // i : objects is index
    for (const i in objects) {

        if (objects[i].x === objects[i].y) count++;
    }

    return count;
}


function main() {
    const n = +(readLine());
    let objects = [];

    for (let i = 0; i < n; i++) {
        const [a, b] = readLine().split(' ');

        objects.push({x: +(a), y: +(b)});
    }

    console.log(getCount(objects));
}