Count objectives || JS Hackerrank Solution

 Objective

In this challenge, we learn about iterating over objects. Check the attached tutorial for more details.

Task

Complete the function in the editor. It has one parameter: an array, , of objects. Each object in the array

has two integer properties denoted by and . The function must return a count of all such objects in

array that satisfy .

Input Format

The first line contains an integer denoting .

Each of the subsequent lines contains two space-separated integers describing the values of and .

Constraints

Output Format

Return a count of the total number of objects such that . Locked stub code in the editor

prints the returned value to STDOUT.

Sample Input 0

5

1 1

2 3

3 3

3 4

4 5

Sample Output 0

2

Solution

'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++];   }     function getCount(objects) {     var count=0;    for(var i=0;i<objects.length;i++){        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));   }