filter an array on object keys not empty

Question

I'm trying to filter an array of objects by an object keys that have a value not empty

var collection = [
                      {
            "season": "ETE 18",
            "group": "GRBABY",
            "market": "ALL",
            "department": "ALL",
            "skuType": "ALL",
            "orderType": "ASE",
            "packagingType": "CI"
        },
        {
            "season": "ETE 18",
            "group": "MEN",
            "market": "ALL",
            "department": "ALL",
            "skuType": "ALL",
            "orderType": "ASE",
            "packagingType": "CI"
        },
        {
            "season": "ETE 18",
            "group": "GRBABY",
            "market": "NONE",
            "department": "ALL",
            "skuType": "ALL",
            "orderType": "ASE",
            "packagingType": "CI"
        },
                     ]

      var filterList = {season: "", group: "GRBABY", market: "ALL", department: "", 
          skuType: ""}

      var result = _.filter(collection , proPack => {
                          if (filterList.group !== '') {
                              return proPack.group === filterList.group;
                          } else {
                              return proPack;
                          }
                    });
                    
                    console.log(result)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

This works for me for one filter but I'm unable to find a way to filter for all other keys when they have a value.

the result shoud be :

result = [
              {
    "season": "ETE 18",
    "group": "GRBABY",
    "market": "ALL",
    "department": "ALL",
    "skuType": "ALL",
    "orderType": "ASE",
    "packagingType": "CI"
} ]

@PaulFitzgerald I added the snippet, result should filter on all keys and not just one key. I can't find a way to filter on all — kyserslick
– kyserslick, Commented Sep 27, 2017 at 12:33

Slai · Accepted Answer · 2017-09-27 12:43:46Z

2

You can remove the empty properties:

var collection = [{
    "season": "ETE 18",
    "group": "GRBABY",
    "market": "ALL",
    "department": "ALL",
    "skuType": "ALL",
    "orderType": "ASE",
    "packagingType": "CI"
  },
  {
    "season": "ETE 18",
    "group": "MEN",
    "market": "ALL",
    "department": "ALL",
    "skuType": "ALL",
    "orderType": "ASE",
    "packagingType": "CI"
  },
  {
    "season": "ETE 18",
    "group": "GRBABY",
    "market": "NONE",
    "department": "ALL",
    "skuType": "ALL",
    "orderType": "ASE",
    "packagingType": "CI"
  }
]

var filterList = {season: "", group: "GRBABY", market: "ALL", department: "", 
          skuType: ""}
          
var filterList = _.omitBy(filterList, _.isEmpty)   // { group: "GRBABY", market: "ALL" }

var result = _.filter(collection, filterList)

console.log(filterList, result)

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

edited Sep 27, 2017 at 12:43

answered Sep 27, 2017 at 12:36

Slai

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3 Comments

Gruff Bunny Over a year ago

You could code the removal of empty filters using omitBy: let filters = _.omitBy(filterList, _.isEmpty);

kyserslick Over a year ago

@Slai this works indeed if filterList object has only the two keys, but my filterList is an object model that has always all keys, some are valorised and some not. this why I need to filter only on keys having a value

Slai Over a year ago

Thanks @GruffBunny

arbuthnott · Accepted Answer · 2017-09-27 12:42:27Z

I think this should do what you want. You are ignoring keys in your filterList with empty values right?

var collection = [
                      {
            "season": "ETE 18",
            "group": "GRBABY",
            "market": "ALL",
            "department": "ALL",
            "skuType": "ALL",
            "orderType": "ASE",
            "packagingType": "CI"
        },
        {
            "season": "ETE 18",
            "group": "MEN",
            "market": "ALL",
            "department": "ALL",
            "skuType": "ALL",
            "orderType": "ASE",
            "packagingType": "CI"
        },
        {
            "season": "ETE 18",
            "group": "GRBABY",
            "market": "NONE",
            "department": "ALL",
            "skuType": "ALL",
            "orderType": "ASE",
            "packagingType": "CI"
        },
                     ]

      var filterList = {season: "", group: "GRBABY", market: "ALL", department: "", 
          skuType: ""}

var doFilter = function(arr, filterObj) {
    return arr.filter(propack => {
        for (key in filterObj) {
            if (filterObj[key] && filterObj[key] !== propack[key]) {
                return false;
            }
        }
        return true;
    });
};

console.log(doFilter(collection, filterList));

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

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