print "0"

Question

// Write code to calculate the average of an array
// If there are no items in the array it should return 0
// NOTE: Create a function to find the sum of elements in an array and use that function to find out the average
let x = []
let y = x.length
let number=sum(y, x);

function sum(a, b){
total=0;
for(i=0;i<a;i++)
total+=b[i];
return(total);
}
average = number/y;
console.log(average)

i want to print 0 but the output give me NaN

how can i print 0 when my array is empty?

Answer 1

You could use an if-statement: if it is empty, print 0...

Answer 2

Why?

If length is 0, dividing by 0 will produce nan.

Answer 3

Other than that ?

Answer 4

Yes I do with if else