CODEWITHSUNDEEP
javascriptjqueryarraysjsonmapping
harili
harili

Reputation: 477

How can I exclude empties arrays from an array?

I've succeeded to retrieve the array which contains the product (filter by an ID) but I got empties arrays in the output too.

Here the piece of code I wrote for the example:

var category = [{
    "reference": 'BC-ENFANT',
    "name": 'Pour les Enfants',
    "description": 'Soins pour les enfants...',
    "id": 155,
    "productList": [{
        "id": 13655,
        "reference": 'PROD_ENFANT_01',
        "name": 'Brushing'
      },
      {
        "id": 13656,
        "reference": 'PROD_ENFANT_03',
        "name": 'Soins'
      },
    ]
  },

  {
    "reference": 'BC-FEMME',
    "name": 'Pour les Femmes',
    "description": 'Prestations pour les femmes',
    "id": 154,
    "productList": [{
        "id": 13657,
        "reference": 'PROD_ENFANT_01',
        "name": 'Brushing'
      },
      {
        "id": 13658,
        "reference": 'PROD_ENFANT_03',
        "name": 'Soins'
      },
    ]
  }
];

var productList = category.map(p => {
  return p.productList
});
var product = productList.map(p => p.filter(p => p.id === 13657).map(pp => {
  return {
    Reference: pp.reference,
    Name: pp.name,
    Quantity: 1
  }
}));
console.log(product)

Upvotes: 1

Views: 41

Answers (1)

Rory McCrossan
Rory McCrossan

Reputation: 337666

My goal is to retrieve the product object from all the productList

In this case you can use map() to create a multi-dimensional array of them and then flat() to combine it in to a single dimension array, like this:

var category = [{"reference":'BC-ENFANT',"name":'Pour les Enfants',"description":'Soins pour les enfants...',"id":155,"productList":[{"id":13655,"reference":'PROD_ENFANT_01',"name":'Brushing'},{"id":13656,"reference":'PROD_ENFANT_03',"name":'Soins'},]},{"reference":'BC-FEMME',"name":'Pour les Femmes',"description":'Prestations pour les femmes',"id":154,"productList":[{"id":13657,"reference":'PROD_ENFANT_01',"name":'Brushing'},{"id":13658,"reference":'PROD_ENFANT_03',"name":'Soins'}]}];

var productList = category.map(p => p.productList).flat();
console.log(productList)

Upvotes: 1

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