Intermediate Algorithm Scripting - Sum All Primes

JavaScript
1

if the input is 10 the code works correctly but on the higher numbers like 977 something goes wrong.

function sumPrimes(num) {
    let result = 2
    for(let i = 2; i <= num; i++){

        for(let j = 2; j < i; j++){
            if(i % j !== 0){
                if(j == i - 1){
                result += i
                }
            } else if(i % j == 0){
            j =  2
            i++
        }
            if( i == num){
                break
            }
        }

    }
  return result;
}

console.log(sumPrimes(977));

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Challenge: Intermediate Algorithm Scripting - Sum All Primes

Link to the challenge:

2

What is different about the test cases? What is different about those two numbers, 10 and 977? OK, granted 977 is a difficult number. What I said that your code fails for 5, 7, and 11, among others.?

A big part of being a good programmer is being a good debugger, and that is mostly being a good detective.

1 Like
4

wat is the difference between your answer and the given correct answer?

5

You can add some console.log statements inside the code so you can see how the 977 is being handled and identify the issue.

1 Like
6

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