Loops in Javascript

Question

Hello So I was watching Jim's tutorials on loops in Javascript and i'm trying to make the extra credit but it seems like the output is not what I desire.

Here is the program instructions:

Extra Credit Fizz Buzz

Write a program that loops through the numbers 1 through 100. Each number should be printed to the console, using console.log(). However, if the number is a multiple of 3, don't print the number, instead print the word "fizz". If the number is a multiple of 5, print "buzz" instead of the number. If it is a multiple of 3 and a multiple of 5, print "fizzbuzz" instead of the number.

Hint. Use loops and if/else statments. In javascript the % is the modulo, or remainder operator. a % b evaluates to the remainder of a divided by b. 11 % 3 is equal to 2.

This is my code:

for (var counter = 0; counter <=100; counter++) {

if(counter%3==0){



    console.log("fizz");



}

    if(counter%5==0){


        console.log("buzz");

    }


    if(counter%5 ==0 & counter%3==0){


            console.log("fizzbuzz");
        }

        else{

            console.log(counter);
        }

}

Ive tried many things but i can't just make it work. If I just do it with numbers divisible by 3 without 5 and 5 and 3 it will work.

Any suggestions?

Thanks

Gabriel.

Answer 1 · 2014-05-29T21:45:33Z

May 29, 2014 9:45pm

Yep, as Scott said, getting your if statements correct is a core part of programming. It's something that you hopefully get better at with practice. I would write the if statements like this for this task:

if(counter%5 ==0 && counter%3==0) {
    console.log("fizzbuzz");
} else if(counter%3==0) {
    console.log("fizz");
} else if(counter%5 ==0) {
    console.log("buzz");
} else {
    console.log(counter);
}

Basically, the reason I do the 5 and 3 is that you have to remember about if statements that the minute it reaches a true condition, it processes the true part and then stops processing. If you don't do it this way, it'll never get the 5 and 3 condition right.

This is a good example of how to think about the logic. I would recommend changing this if statement up and see what happens so you can learn more about them.

Answer 2 · 2014-05-29T21:36:52Z

May 29, 2014 9:36pm

First, you'll want to use the javascript logical AND operator && (not the bitwise operator &).

Second, remember that an else statement only gets associated with a single if statement (and that an if statement may contain 0 or more else ifs

Answer 3 · 2014-05-29T21:52:50Z

May 29, 2014 9:52pm

Thank you guys.

I understand now.

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Gabriel Garcia

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Loops in Javascript

3 Answers

Gareth Borcherds

Gareth Borcherds

Scott Fletcher

Scott Fletcher

Gabriel Garcia

Gabriel Garcia