# intersectByKeys()
The intersectByKeys method removes any keys from the original collection that are not present in the given array
or collection:
const collection = collect({
serial: 'UX301',
type: 'screen',
year: 2009,
});
const intersect = collection.intersectByKeys({
reference: 'UX404',
type: 'tab',
year: 2011,
});
intersect.all();
// { type: 'screen', year: 2009 }
const firstCollection = collect([1, 2, 3, 4, 5]);
const secondCollection = collect([1, 2, 3, 9]);
intersect = firstCollection.intersect(secondCollection);
intersect.all();
// [1, 2, 3]
← intersect() isEmpty() →