Why code isn't working? Pls help...

Question

Hi Guys,

here is the code:

var message = "";

//array of objects holding list of students

var student = [

{ name: "David", age: "23", course: "Java", level: "Guru" },

{ name: "Roman", age: "24", course: "HTML", level: "Professional" },

{ name: "Brigita", age: "28", course: "PHP", level: "intermediate" },

{ name: "John", age: "23", course: "HTML", level: "Rookie" }

];

function print(report) { var outputDiv = document.getElementById("output"); outputDiv.innerHTML = report; }

while(true) {

var input = prompt ("Please insert name of student..."); input = input.toLowerCase(); if (input === "quit") { break; }

for (var i = 0; i < student.length; i += 1) { if (input === student[i].name) { message += ("<h2>Student: " + student[i].name + "</h2>"); message += ("<p>Age: " + student[i].age + "</p>"); message += ("<p>Course: " +student[i].course + "</p>"); message += ("<p>Level: " + student[i].level + "</p>"); print(message); }

} }

what's wrong with it? When i type the name which is in list, loop ends and i receive empty page as output.

thx in adv

Answer 1 · 2017-04-21T12:11:33Z

April 21, 2017 12:11pm

The reason the page is not populating with any data, is because it cannot find what you're looking for.

input.toLowerCase() turns input into all lower case but the values in the object are uppercase. You need to also apply the .toLowerCase() method to what you find in the object. See my code below:-

while (true) {
    var input = prompt("Please insert name of student...");
    input = input.toLowerCase();
    if (input === "quit") {
        break;
    }

    for (var i = 0; i < student.length; i += 1) {
        if (input === student[i].name.toLowerCase()) {
            message += ("<h2>Student: " + student[i].name + "</h2>");
            message += ("<p>Age: " + student[i].age + "</p>");
            message += ("<p>Course: " + student[i].course + "</p>");
            message += ("<p>Level: " + student[i].level + "</p>");
            print(message);
        }

    }
}

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Dmitri Antonov

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Why code isn't working? Pls help...

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Anthony McCormick

Anthony McCormick