Using Vue's forEach method in a computed property

I am currently working on a checkbox filter function that saves the value of clicked checkboxes in an array. However, I am encountering issues with updating the computed data as it is always returning undefined.

The structure of the data:

Casino { brand_tags { Brand_Tag_Name } }

Computed:

computed: {
    filteredCasinos: function() {
      return this.casinos.forEach(casino => {
        return casino.brand_tags.filter(brandTag => {
          return this.filteredCategories.includes(brandTag.Brand_Tag_Name)
        })
      })
    }
},

HTML (It seems to be functioning correctly)

        <label for="Featured">Featured Casinos
          <input type="checkbox" v-model="filteredCategories" value="Featured">
        </label>
        <label for="Featured">Big Brands
          <input type="checkbox" v-model="filteredCategories" value="Big Brand">
        </label>
        <label for="Featured">New Casinos
          <input type="checkbox" v-model="filteredCategories" value="New Casino">
        </label>
        <label for="Featured">Pay n Play
          <input type="checkbox" v-model="filteredCategories" value="Pay N Play">
        </label>
        <label for="Featured">Trusted Casinos
          <input type="checkbox" v-model="filteredCategories" value="Trusted Casino">
        </label>

Answer №1

This issue occurs because when return this.casinos.forEach is executed, it results in undefined being returned.

{ getFilteredCasinos: function() {
    return this.casinos.filter(casino => {
        return !!casino.brand_tags.find(brandTag => {
            return this.filteredCategories.includes(brandTag.Brand_Tag_Name)
        })
    })
}

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