filtering array with multiple conditions upon click (checkbox elements)

Question

I can't figure it out how to set a filter that compares an array of objects with an array. I don't even know if it is possible. Here is a bit of the data and what I'm attempting to do:

The filters come from a number of checkboxes in my ui. Below and example:

the strings are characteristics and the number is the height.

const filter = ["moto", "gre", "sm"]

const arrayOfData = [{id: 1, characteristics: ['motorbike', 'green', 'small'],

}, {id: 2, characteristics: ['car', 'large', 'black']}, {id: 3, characteristics: ['motorbike', 'yellow', 'large']]

The result should throw those which arrays contain the initial letter, in the case above. I have tried using some() and include() but I can't work it out!

something like arr.find(item=>loop_through_its_content_and_check_it_match_the_prefix(filter,item.char)) — apple apple
– apple apple, Commented Jan 17, 2021 at 13:17

phi-rakib · Accepted Answer · 2021-01-17 13:30:51Z

1

You could do it combination of array Array.prototype.filter() as well as Array.prototype.some() method and check prefix with String.prototype.startsWith() method.

const arrayOfData = [
  { id: 1, characteristics: ['motorbike', 'green', 'small'] },
  { id: 2, characteristics: ['car', 'large', 'black'] },
  { id: 3, characteristics: ['motorbike', 'yellow', 'large'] },
];

const filter = ['moto', 'gre', 'sm'];
const ret = arrayOfData.filter(
  (x) =>
    x.characteristics.filter((y) => filter.some((z) => y.startsWith(z)))
      .length > 0
);
console.log(ret);

answered Jan 17, 2021 at 13:30

phi-rakib

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1 Comment

Carlos Escobar Over a year ago

Thanks! This is what I was looking for and actually made me realise that I have a problem with my data. As you see, it throws small and medium, I need to change this, but thanks for the push!

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