I have been able to create the array and average but I am running into roadblocks extracting information from the array.
I need to: Loop and find students that failed. Find the student with the highest mark
var numStu = 0;
numStu = parseInt(prompt("Please enter the number of students enrolled in the class."));
var stuInfo = Array();
stuInfo[0] = Array(); // holds student's names
stuInfo[1] = Array(); // holds marks
stuInfo[2] = Array();
for (g = 0; g < numStu; g++) {
stuInfo[0][g] = prompt("Enter the name of student number " + g + ".");
stuInfo[1][g] = parseFloat(prompt("Enter the Mult 114 grade " + stuInfo[0][g] + "."));
}
document.writeln("<table border='1' width='50%'>")
document.writeln("<tr><th>Name</th><th>Chem</th></tr>")
for (row = 0; row < numStu; row++) {
document.writeln("<tr>");
document.writeln("<td>");
document.writeln(stuInfo[0][row]); //Student names
document.writeln("</td>");
document.writeln("<td>");
document.writeln(stuInfo[1][row]); //Student marks
document.writeln("</td>");
}
document.writeln("</table>")
var sum = 0;
for (mult = 0; mult < numStu; mult++) {
sum = sum + stuInfo[1][mult];
}
var avg1 = sum / numStu; // Calculate chem averages
document.writeln("<p>The class average: " + avg1 + " percent.");
I was trying to add code as below to extract - but it crashes on me. Any assistance would be greatly appreciated.
var gradeVal = 0;
var gradeIndex = -1;
for (var i = 0; i <= stuInfo.length; i++) {
if(stuInfo[i] > gradeVal) {
gradeVal = stuInfo[i];
gradeIndex = i;
}
else {
}
}
document.writeln("the highest score is " + gradeVal +);
document.writeln("the student is " + stuInfo[gradeIndex] +);
Thanks
Maximum value
const maxScore = (data) => {
let max = data.length > 0 ? data[0] : unedfined;
for (let i = 1; i < data.length; i++) {
if (data[i] > max) max = data[i];
}
return max;
};
Minimum value
const minScore = (data) => {
let min = data.length > 0 ? data[0] : unedfined;
for (let i = 1; i < data.length; i++) {
if (data[i] < min) min = data[i];
}
return min;
};