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JavaScript

Pimwipha Cheaptumrong
Pimwipha Cheaptumrong
10,977 Points
Posted by Pimwipha Cheaptumrong
Pimwipha Cheaptumrong
10,977 Points

Why we create a new function for the student report message and why we move the for..loop inside while..loop?

Hi, I am watching the challenge video. I have so many questions in my head right now. I still wonder why we need to create a new function for student reports outside and how do I know that it's time to create function. Why we just don't create a function inside for for..loop itself? Why we also move the for..loop inside while..loop? Personally I am still not very clear about while..loop and for..loop 100%. It's getting confused how we put all of these things together. Thank you so much. I have watched the videos multiple times and I still don't understand it for a while now.

Steven Parker
Steven Parker
229,786 Points
Steven Parker
Steven Parker
229,786 Points

It would help to see the code you are referring to, can you provide a link to the course page, and an approximate time index into the video?

2 Answers

Pimwipha Cheaptumrong
Pimwipha Cheaptumrong
10,977 Points
Pimwipha Cheaptumrong
Pimwipha Cheaptumrong
10,977 Points

Oh, I am so sorry. Here is the link to the lesson.

https://teamtreehouse.com/library/the-student-record-search-challenge-solution

The Student Record Search Challenge Solution (7:26) with Dave McFarland

//code below

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

Steven Parker
Steven Parker
229,786 Points
Steven Parker
Steven Parker
229,786 Points

The inner loop checks every student in the list to see if there is a match for the name you typed in.

The outer loop lets you repeat the entire process to keep checking more names.