searching multiple Object Value in another Object JavaScript

Question

I have 2 array of object in that, I want to compare all of the first array object property and value present in the second array of object. (at the object level.)

array 1

 [
  {
    "id": "id1",
    "name": "name1"
  },
  {
    "id": "id3",
    "name": "name3"
  }
]

array 2

[
  {
    "id": "id1",
    "name": "name1",
    "other": "other"
  },
  {
    "id": "id2",
    "name": "name2",
    "other": "other"
  },
  {
    "id": "id3",
    "name": "name3",
    "other": "other"
  }
]

In this case it will return true because, all of array 1 values present in array 2.

but if I have one property value that does not match with array 2, that will return false.

 [
  {
    "id": "id1",
    "name": "name1"
  },
  {
    "id": "id5",
    "name": "name3"
  }
]

This will return false because { "id": "id5","name": "name3"} does not present in the array2.

I'm trying to compare with two for loop but I wanted to return false only once after both loop completes comparing all properties and value.now,

here is the two loops I'm trying, I know this is wrong because, it will return false when there is no value find and it will not go into the further loop.

for (var i = 0,   i < a.length; i++) {
  for (var j = 0, j < b.length; j++) {
    if (b[j].id === a[i].id && b[j].name === a[i].name) {
      console.log('all values found');
      return true;
    }
    console.log('some values does not found');
     return false;
  }
}

I'm also using lodash.

Answer 1

Use lodash's _.intersectionBy(), and compare the length of the result with the length of the shorter array:

var arr1 = [{"id":"id1","name":"name1","other":"other"},{"id":"id2","name":"name2","other":"other"},{"id":"id3","name":"name3","other":"other"}];
var arr2 = [{"id":"id1","name":"name1"},{"id":"id3","name":"name3"}];
var arr3 = [{"id":"id1","name":"name1"},{"id":"id5","name":"name3"}];

var result1_2 = _.intersectionBy(arr2, arr1, 'id').length === arr2.length;

var result1_3 = _.intersectionBy(arr3, arr1, 'id').length === arr3.length;

console.log(result1_2);

console.log(result1_3);

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