how to add an answer to grepper code example

Example 1: add grepper answer manually

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Example 2: grepper add code answer

ngFor filter products based on categories


*ngFor="let item of filteredvalues"    at html


at TS

//filter products by category id 
    this.apiService.getList().subscribe(response => {
      this.productsData = response;
      this.filteredvalues = this.productsData.filter(res => 
        res.category_id == this.id);
      console.log('get all products', this.filteredvalues);
    });