Javascript Question
javascript grade calculator using arrays and functions clarification
I am trying to write a program that will display the letter grade once user inputs a real or float number. Prompt question works but the function is not working. I tried debugging the code with no success.
Any help is welcomed. Thanks!
var nameData = ['A', 'B', 'C', 'D', 'E', 'F'];
var nameDataLength = nameData.length;
var avgGrade = 0;
var gradeDate = prompt('Enter your grade to check your letter grade');
function getAvg(nameData, gradeData) {
for (var i = 0; i < nameData.length; i++) {
alert("Your grades are " + nameData[i] + " ," + gradeData[i]);
if (gradeData[i] >= 90) {
alert("Your grades are " + nameData[i] + "A");
} else if (gradeData[i] >= 80) {
alert("Your grades are " + nameData[i] + "B");
} else if (gradeData[i] >= 70) {
alert("Your grades are " + nameData[i] + "C");
} else if (gradeData[i] >= 60) {
alert(" Your grades are " + nameData[i] + "D");
} else {
alert("Your grades are " + nameData[i] + "F");
}
}
}
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Answer Source
You have several problems:
- typo:
nameDate->nameData - you never call your function
- your function does not do what you think it does
I will solve the first two so that you can see the third.
var nameData = ['A', 'B', 'C', 'D', 'E', 'F'];
var nameDataLength = nameData.length;
var avgGrade = 0;
function getAvg(gradeData) {
for (var i = 0; i < nameData.length; i++) {
alert("Your grades are " + nameData[i] + " ," + gradeData[i]);
if (gradeData[i] >= 90) {
alert("Your grades are " + nameData[i] + "A");
} else if (gradeData[i] >= 80) {
alert("Your grades are " + nameData[i] + "B");
} else if (gradeData[i] >= 70) {
alert("Your grades are " + nameData[i] + "C");
} else if (gradeData[i] >= 60) {
alert(" Your grades are " + nameData[i] + "D");
} else {
alert("Your grades are " + nameData[i] + "F");
}
}
}
var gradeData = prompt('Enter your grade to check your letter grade');
// you need to actually call the function.
getAvg(gradeData);
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