title: filter array into another array
body: <p>explain my situation i want to filter my response of my API thats return an array to make this question i take this data of testing</p>
  <p>this prodPrueba simulates the products and variations selected by the user</p>
  <pre><code>let prodPrueba = [
    {
      id: &quot;B801278&quot;,
      variation: &quot;B801278-18&quot;,
    },
  
    {
      id: &quot;PC002&quot;,
      variation: &quot;PC002&quot;,
    },
  ];
  </code></pre>
  <p>The id its the code of a product selected and the variation its the variation selected by the user for a product, example... a shoes its a product and the size 18 its the variation B801278-18</p>
  <p>this is the response of my backend</p>
  <pre><code>        let dataResponse = [
    {
    codProduct: &quot;PC002&quot;,
    created_at: &quot;2021-01-19T11:28:06.000000Z&quot;,
    desc: null,
    html_description: null,
    html_short_description: null,
    id_kit: null,
    kit: [],
    manufacturer: null,
    material: null,
    name: &quot;Kit de Limpeza&quot;,
    id: &quot;PC002&quot;,
    status: &quot;active&quot;,
    tags: null,
    theme: null,
    title: null,
    type: null,
    variations: 
    [
      {
        product: &quot;PC002&quot;, 
        cod: &quot;U&quot;, 
        sku: &quot;U&quot;, 
        product_sku: &quot;PC002&quot;, 
        price: 96000,
      }
    ]
  
    },
    {
      codProduct: &quot;ENG792015_9&quot;,
      created_at: &quot;2021-01-19T11:27:59.000000Z&quot;,
      desc: null,
      html_description: null,
      html_short_description: null,
      id_kit: null,
      kit: [],
      manufacturer: null,
      material: null,
      name: &quot;Charm en Plata.&quot;,
      id: &quot;ENG792015_9&quot;,
      status: &quot;active&quot;,
      tags: null,
      theme: null,
      title: null,
      type: null,
      variations: [
        {
          cod: &quot;U&quot;,
          product: &quot;ENG792015_9&quot;,
          product_sku: &quot;ENG792015_9&quot;,
          price: 415000,
          sku: &quot;U&quot;
        }
      ]
    },
    {
      codProduct: &quot;B801278&quot;,
      created_at: &quot;2021-01-19T11:27:30.000000Z&quot;,
      desc: null,
      html_description: null,
      html_short_description: &quot;Set de Regalo Brazalete en Plata Clip&quot;,
      id_kit: null,
      kit: [],
      manufacturer: null,
      material: null,
      name: &quot;Set de Regalo Brazalete en Plata, Clip&quot;,
      id: &quot;B801278&quot;,
      status: &quot;active&quot;,
      tags: null,
      theme: null,
      title: null,
      type: null,
      variations: [
        {
          cod: &quot;U&quot;,
          price: 950000,
          product: &quot;B801278&quot;,
          product_sku: &quot;B801278&quot;,
          sku: &quot;U&quot;
        },
        {
          cod: &quot;20&quot;,
          price: 950000,
          product: &quot;B801278&quot;,
          product_sku: &quot;B801278-20&quot;,
          sku: &quot;U&quot;,
        },
        {
          cod: &quot;19&quot;,
          price: 950000,
          product: &quot;B801278&quot;,
          product_sku: &quot;B801278-19&quot;,
          sku: &quot;U&quot;,
        },
        {
          cod: &quot;18&quot;,
          price: 950000,
          product: &quot;B801278&quot;,
          product_sku: &quot;B801278-18&quot;,
          sku: &quot;U&quot;,
        },
        
      ]
    }
  ]
  </code></pre>
  <p>as you see in the object &quot;prodPrueba&quot; i have 2 id's thats coincide with products thats return the API, also into prodPrueba i have an property calls &quot;variation&quot; thats coincide with the &quot;product_sku&quot; of the variation that comes by each product thats return the api. I want to filter the response to get all the variations except those that i have in my prodPrueba i try with filter, map, forEach and i dont know how to do this, any suggestion?</p>