CODEWITHSUNDEEP
javascriptarraysmultidimensional-arraystring-matching
Butri
Butri

Reputation: 457

Checking if elements of an array are included in elements of another array

I'm trying to match 2 arrays and check if all elements of the first array are included in the second one.

My first array looks like this and it contains a series of selected ingredients

selectedOptions:  Array [
  "egg",
  "spaghetti",
  "cream",
]

the second array contains the recipe of a dish and looks like this

"ingredients": Array [
    "spaghetti",
    "raw egg",
    "double cream",
    "tomato sauce",
]

Now, I have a function that iterates through an array of objects and each object contains the "ingredients" array

here is the code

const availableRecipes = recipeList.filter(function (item, i) {
      if (
        selectedOptions.some((option) =>
          item.ingredients.includes(option)          
        )        
      ) {
        return true;
      } else false;
    });

this function works fine, in the sense that it loops through my recipe array and checks for each item if the "egg" and "spaghetti" are part of each recipe.

THE PROBLEM

The function only returns True if the recipe contains exactly the entire word i.e. "egg" or "cream". In my example recipe it will return False as it doesn't contain "egg" but "raw egg" and "double cream" instead of "cream".

I think the problem is with using includes in item.ingredients.includes(option)

Is there anyway that I can do a partial match?

Upvotes: 0

Views: 50

Answers (2)

mykaf
mykaf

Reputation: 1386

For consistency, you'll also need to return false; after your final else, rather than just stating else false;

Upvotes: 0

CertainPerformance
CertainPerformance

Reputation: 370679

You'll need another .some, to iterate over each string to see if the substring is included:

const availableRecipes = recipeList.filter((item) => {
  return selectedOptions.some(
    option => item.ingredients.some(
      ingredient => ingredient.includes(option)          
    )
  );
});

Upvotes: 1

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