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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects The Student Record Search Challenge Solution

Kenan Xin
Kenan Xin
16,139 Points
Posted by Kenan Xin
Kenan Xin
16,139 Points

The Student Record Search Challenge Solution

A simple solution for sharing

var message = '';
var student;
var found = false;

function print(message) {
    var outputDiv = document.getElementById('output');
    outputDiv.innerHTML = message;
}

function getStudentReport(student) {
    var report = '<h2>Student: ' + student.name + '</h2>';
    report += '<p>Track: ' + student.track + '</p>';
    report += '<p>Points: ' + student.points + '</p>';
    report += '<p>Achievements: ' + student.achievements + '</p>';
    return report;
}
while (true) {
    var input = prompt("Search student records: type a name or type 'quit' to end");
    if (input === null || input.toLowerCase() === "quit") break;
    else {
        for (var i = 0; i < students.length; i += 1) {
            student = students[i];
            if (input === student.name) {
                message += getStudentReport(student);
                found = true;
            }

        }
        if (found == false){
            print("No student named "+ input + " is found.")
        }else{
             print(message);
        }

    }
}

4 Answers

Kristin Anthony
Kristin Anthony
11,099 Points
Kristin Anthony
Kristin Anthony
11,099 Points

Very helpful! I was pulling my hair out. But I noticed that, after the first time you find someone, if you search again for someone who isn't there, the message doesn't print. This is because the found variable remains true. To solve this, I inserted 

found = false

in the while loop before the for loop.

Kenan Xin
Kenan Xin
16,139 Points
Kenan Xin
Kenan Xin
16,139 Points 
  if (input === student.name) {
                message += getStudentReport(student);
                found = true;
            }else{

found =false;
Ernest Son
Ernest Son
13,532 Points
Ernest Son
Ernest Son
13,532 Points

I did it like this.....please offer feedback!

var message = 'Your student could not be found.  Please check the spelling';
var student;
var search;
var cycles = 0;

function print(message) {
  var outputDiv = document.getElementById('output');
  outputDiv.innerHTML = message;
}

function getStudentReport (student) {
  var report = '<h2>Student: ' + student.name + '</h2>';
  report += '<p>Track: ' + student.track + '</p>';
  report += '<p>Points: ' + student.points + '</p>';
  report += '<p>Achievements: ' + student.achievements + '</p>';
  return report;
}

while ( true ) {
  search = prompt("Search student records: type a first and last name [Jody Barnes] (or type 'quit' to end)");
  if ( search === null || search.toLowerCase() === 'quit' ) {
    break;
  } else {
    for ( var i = 0; i < students.length; i += 1 ) {
      student = students[i];
      if ( student.name.toLowerCase() === search.toLowerCase() ) {
        message = getStudentReport(student);
        } 
      }
    print(message);
    }
 }
Riks Fontein
Riks Fontein
7,523 Points
Riks Fontein
Riks Fontein
7,523 Points

I can't find my bug, can someone please review my code:

var message = ''; var student; var search;

function print(message) { var outputDiv = document.getElementById('output'); outputDiv.innerHTML = message; }

function getStudentReport( student ){ var report = '<h2>Student: ' + student.name + '</h2>'; report += '<p>Track: ' + student.track + '</p>'; report += '<p>Points: ' + student.points + '</p>'; report += '<p>Achievements: ' + student.achievements + '</p>'; return report }

while (true){ var answer = prompt('Search student records: type a name or type quit to end'); if (answer === null || answer.toLowerCase() === 'quit'){ break; } else { for (var i = 0; i < students.length; i += 1) { student = students[i]; if ( student.name === search) { message = getStudentReport( student ) }; }; }; }; print(message)

Abdifatah Mohamed
Abdifatah Mohamed
5,289 Points
Abdifatah Mohamed
Abdifatah Mohamed
5,289 Points

You are missing variable students which is undefined here. You need to list var students = [ {}, {}, {}, {}, {},]; after that you will be able to see your bug.

Abdifatah Mohamed
Abdifatah Mohamed
5,289 Points
Abdifatah Mohamed
Abdifatah Mohamed
5,289 Points

This is my solution when you type a name that doesn't exist in the set of students:

else { if (student.name != search) { print( 'No student ' + search + ' was found.'); } }