Function intersection

Returns the intersection of two arrays: the elements that are in common. Duplicates are removed in the process.

By default compares based on a string representation of object.

intersection([1, 2, 3], [2, 4, 6]); // returns [2]

To compare object instances:

intersection(arrayA, arrayB, (a,b) => a === b)

To use a custom string representation, eg, to only compare based on 'name' property of objects:

intersection(arrayA, arrayB, (v) => v.name)

See also:

uniqueByKey/uniqueByComparer: Get unique items across one or more arrays, including within the array

Param: arrayA

Param: arrayB

Param: comparerOrKey

Comparer or key-generating function

Returns

intersection<V>(arrayA: V[], arrayB: V[], comparer: IsEqual<V>): V[]
Returns the intersection of two arrays: the elements that are in common. Duplicates are removed in the process.

Custom function checks equality of objects:
```
// Compare based on 'name' property
intersection(arrayA, arrayB, (a,b) => {
 return a.name === b.name
})
```
Type Parameters
- V
Parameters
- arrayA: V[]
- arrayB: V[]
- comparer: IsEqual<V>
Returns V[]
- Defined in intersection.ts:18
intersection<V>(arrayA: V[], arrayB: V[], toString: (value: V) => string): V[]
Returns the intersection of two arrays: the elements that are in common. Duplicates are removed in the process.

Custom function makes a string representation of objects to use as the basis for comparison
```
intersection(arrayA, arrayB, (v) => v.name)
```
Type Parameters
- V
Parameters
- arrayA: V[]
- arrayB: V[]
- toString: (value: V) => string
Returns V[]
- Defined in intersection.ts:34
intersection<V>(
    arrayA: V[],
    arrayB: V[],
    comparerOrKey?: IsEqual<V> | ((value: V) => string),
): V[]
Returns the intersection of two arrays: the elements that are in common. Duplicates are removed in the process.

Custom function checks equality of objects:
```
// Compare based on 'name' property
intersection(arrayA, arrayB, (a,b) => {
 return a.name === b.name
})
```
Type Parameters
- V
Parameters
- arrayA: V[]
- arrayB: V[]
- OptionalcomparerOrKey: IsEqual<V> | ((value: V) => string)
Returns V[]
- Defined in intersection.ts:40