function sumPrimes(num) {
function isPrime(num) {
for (let i = 2; i <= Math.sqrt(num); i++) {
if (num % i == 0)
return false;
}
return true;
}
let sum = 0;
for (let i = 2; i <= num; i++) {
if (isPrime(i))
sum += 1;
}
return sum;
}
console.log(sumPrimes(10));

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Two questions for you to think about. First, you have this isPrime function, which makes sense, but what is that checking? It is written to expect its own parameter, num which is not the same as num in the outer function, but when you call it…what value of being passed in?

Second, if you do find a prime…what should be added to sum?

sir,
i take this anwer from get hint option now i have done the test. but kindly let me know if in 1st loop instead of “i<= Math.sqrt(num)” can we only put “i<num” ??