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Question

I've been trying to practice my Javascript using CodeWars and I'm still in the beginner phase of learning. I've gotten stuck on this one question and I am hoping someone can explain to me in the most simplest way how to iterate (I believe that's what it's called) through numerous strings based on a number input.

Here is the question:

You pick a petal off a flower saying each of the following phrases each time a petal was torn:

I love you

a little

a lot

passionately

madly

not at all

Your goal in this kata is to determine which phrase you would say for a flower of a given number of petals, where nb_petals > 0 .

So far I have this:

function howMuchILoveYou(nbPetals) {

var petalSaying = ["I love you", "A little", "A lot", "Passionately", 
"Madly", "Not at all"];

for(var petals = 0; nbPetals > 0; nbPetals--);
}

And I'm not sure where to go after this to get it to print out the string necessary based on the number input for nbPetals .

Also, if the number input is 7 for example, it would output I love you .

Thanks in advance for any help.

Answer 1

You don't need to do iteration, just access the given array element by index. If the number is more than the number of elements, use modulus to wrap around.

function howMuchILoveYou(nbPetals) {
    var petalSaying = ["I love you", "A little", "A lot", "Passionately", "Madly", "Not at all"];
    var index = (nbPetals - 1) % petalSaying.length;
    return petalSaying[index];
}

nbPetals - 1 adjusts for the fact that array indexes start at 0 , but nbPetals starts at 1 .