CODEWITHSUNDEEP
arraysangulartypescriptionic2
Fargho
Fargho

Reputation: 1277

Filter an array<objects> by two other array<strings>

i have a short question:

I want to filter an array of objects by two arrays of strings.

My Array looks like this:

[
  {
    "id": 12345,
    "title": "Some title",
    "contains": [
      {
        "slug": "fish",
        "name": "Fish"
      }, {
        "slug": "soy", // search term, like a id
        "name": "Soy"
      } 
    ], "complexity": [
      {
        "slug": 4, // search term, like a id
        "name": "hard"
      }, {
}],..
      },

{...}

and that are my two arrays:

// recipes should not contain this ingredients
let excludedIngredientsArray = Array<string> = ["soy", "fish"]; 

// recipes should not contain this complexities
let excludedComplexityArray = Array<string> = [1, 2];

Now i want to filter the recipes by these two arrays and want to remove all recipes which contain the excluded terms

Whats the best way to do this?

Thanks a lot!

edit:

recipeArray looks like this:

interface recipeArray {
    reciepe: Array<{
        name: string,
        contains: Array<{slug: string, name: string}> //Ingredients array
        complexity: Array<{slug: string, name: string}> //complexity array
    }>
}

Upvotes: 0

Views: 165

Answers (1)

Nitzan Tomer
Nitzan Tomer

Reputation: 164139

If your first array is like this:

interface Item {
    id: number;
    title: string;
    contains: { slug: string; name: string }[],
    complexity: { slug: number; name: string }
}

let data: Item[];

Then you can have your desired filtered array like so:

let excluded = data.filter(item => {
    return item.contains.every(obj => excludedIngredientsArray.indexOf(obj.slug) < 0)
        && excludedComplexityArray.indexOf(item.complexity.slug) < 0;
});

Upvotes: 2

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