Review JavaScript Fundamentals by Building a Gradebook App - Step 1

JavaScript
1

Tell us what’s happening:

what is wrong with my code it isnt giving me average and in the console it is showing undefined ,NAN

Your code so far


// User Editable Region


function getAverage(scores,sum) {
for(let i=0;i<=scores.length;i++){
  let sum=0;
   sum=sum+scores[i];
}
console.log(sum);
 sum=sum/scores.length;

return sum;
}
console.log(getAverage([92, 88, 12, 77, 57, 100, 67, 38, 97, 89]));
console.log(getAverage([45, 87, 98, 100, 86, 94, 67, 88, 94, 95]));

// User Editable Region

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Edg/139.0.0.0

Challenge Information:

Review JavaScript Fundamentals by Building a Gradebook App - Step 1

2

On each iteration of the for loop, sum is set to 0. Try assign it before the for loop.

3

after you do this, what do you think the value of sum is after each iteration?