CODEWITHSUNDEEP
javascriptunderscore.js
Ramya Ramachandran
Ramya Ramachandran

Reputation: 1151

Underscore to filter array object using another array

How to get specific properties from array b. Those properties to be filtered are in array a.

Is there any easier way to do using underscore.

var a = [{
  name: "code"
}, {
  name: "barcode"
}, { 
  name: "status",
  type: "button"
}];

var b = [{
  id: 1,
  code: 10,
  barcode: "121212",
  status: "success",
  amount: "10",
  available: true
}, {
  id: 1,
  code: 10,
  barcode: "121212",
  status: "success",
  amount: "10",
  available: true
}];

Now if using underscore how can I get below result

var c = [{
  code: 10,
  barcode: "121212",
  status: "success"
}, {
  code: 10,
  barcode: "121212",
  status: "success"
}];

Upvotes: 0

Views: 378

Answers (2)

Season
Season

Reputation: 4366

(function( property, x, y ) {
  var filters = _.pluck( x, property );
  var filter = function( obj ) {
    return _.pick( obj, filters );
  };
  return _.map( y, filter );
})( 'name', a, b );

Upvotes: 1

Francesco Pezzella
Francesco Pezzella

Reputation: 1795

var filters = _.pluck(a, 'name');

var c = _.map(b, function(el) {
    return _.pick(el, filters);
});

Upvotes: 1

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