4-eligible-students.js

/*
  Only students who have attended enough classes are eligible to sit an exam.

  Create a function which:
  - Accepts an array which contains all the students' names and their attendance counts
    (see tests to confirm how this data will be structured)
  - Returns an array containing only the names of the who have attended AT LEAST 8 classes
*/


function eligibleStudents(arr) {

  let filteredstudent = arr.filter(checkStudentAttendens);
  function checkStudentAttendens(nameAndAttandens){
    return nameAndAttandens[1] >=8;

  }
  console.log(filteredstudent);
  let getStudentNames= filteredstudent.map(bringName);
  function bringName(nameAndAttandens){
    return nameAndAttandens[0];

  }
  console.log(getStudentNames)
  return getStudentNames;
}


// function eligibleStudents(arr) {
//   let newArr = [];
//   for (let i = 0; i < arr.length; i++) {
//     for (let j = 0; j < arr[i].length; j++) {
//       if (arr[i][j] >= 8) {
//         newArr.push(arr[i][0]);
//       }
//     }
//   } return newArr;

// }

/* ======= TESTS - DO NOT MODIFY ===== */

const attendances = [
  ["Ahmed", 8],
  ["Clement", 10],
  ["Elamin", 6],
  ["Adam", 7],
  ["Tayoa", 11],
  ["Nina", 10]
]

const util = require('util');

function test(test_name, actual, expected) {
    let status;
    if (util.isDeepStrictEqual(actual, expected)) {
        status = "PASSED";
    } else {
        status = `FAILED: expected: ${util.inspect(expected)} but your function returned: ${util.inspect(actual)}`;
    }

    console.log(`${test_name}: ${status}`);
}

test("eligibleStudents function works",
  eligibleStudents(attendances),
  ["Ahmed", "Clement", "Tayoa", "Nina"]
);