Write a javascript program that asks user to enter a number

Write a javascript program that asks user to enter a number, n, then output all prime numbers from 1 to n. At the end of your program, you shall output the sum of all prime numbers from 1 to n. To simplify your program, you may assume 1 is a prime. Your program will make sure the user entered positive integer number in order to proceed.

Solution

function primeNumbers(n) {
array = [];
for (var i = 2; array.length < n; i++) {
for (var count = 2; count < i; count++) {
var divisorFound = false;
if (i % count === 0) {
divisorFound = true;
break;
}
}
if (divisorFound == false)
{array.push[i];}
}
return array;
}

var sum=0;

for(var i=0;i<array.length;i++)
{

document.writeln(array[i]);
sum=sum+array[i];
}
alert(\"sum=\"+sum);