JavaScript Set symmetricDifference()
Syntax & Examples

Set.symmetricDifference() method

The symmetricDifference() method of the Set object in JavaScript takes another set as an argument and returns a new set containing elements which are in either the original set or the given set, but not in both.

Syntax of Set.symmetricDifference()

The syntax of Set.symmetricDifference() method is:

symmetricDifference(other)

This symmetricDifference() method of Set takes a set and returns a new set containing elements which are in either this set or the given set, but not in both.

Parameters

ParameterOptional/RequiredDescription
otherrequiredThe set to compare with the original set.

Return Type

Set.symmetricDifference() returns value of type Set.


✐ Examples

1 Using symmetricDifference() to find unique elements between two sets of numbers

In JavaScript, we can use the symmetricDifference() method to find unique elements between two sets of numbers.

For example,

  1. Create a new Set object setA with initial values 1, 2, and 3.
  2. Create another Set object setB with initial values 3, 4, and 5.
  3. Use the symmetricDifference() method to find the unique elements between setA and setB, storing the result in symDiffSet.
  4. Log the symDiffSet to the console using console.log().

JavaScript Program

const setA = new Set([1, 2, 3]);
const setB = new Set([3, 4, 5]);
const symDiffSet = setA.symmetricDifference(setB);
console.log(symDiffSet);

Output

Set { 1, 2, 4, 5 }

2 Using symmetricDifference() with sets of strings

In JavaScript, we can use the symmetricDifference() method to find unique elements between two sets of strings.

For example,

  1. Create a new Set object setA with initial values 'apple', 'banana', and 'cherry'.
  2. Create another Set object setB with initial values 'banana', 'cherry', and 'date'.
  3. Use the symmetricDifference() method to find the unique elements between setA and setB, storing the result in symDiffSet.
  4. Log the symDiffSet to the console using console.log().

JavaScript Program

const setA = new Set(['apple', 'banana', 'cherry']);
const setB = new Set(['banana', 'cherry', 'date']);
const symDiffSet = setA.symmetricDifference(setB);
console.log(symDiffSet);

Output

Set { 'apple', 'date' }

3 Using symmetricDifference() to find unique elements between sets of objects

In JavaScript, we can use the symmetricDifference() method to find unique elements between two sets of objects.

For example,

  1. Create a new Set object setA with initial objects representing different people.
  2. Create another Set object setB with some overlapping objects.
  3. Use the symmetricDifference() method to find the unique elements between setA and setB, storing the result in symDiffSet.
  4. Log the symDiffSet to the console using console.log().

JavaScript Program

const person1 = { name: 'John' };
const person2 = { name: 'Jane' };
const person3 = { name: 'Doe' };
const setA = new Set([person1, person2]);
const setB = new Set([person2, person3]);
const symDiffSet = setA.symmetricDifference(setB);
console.log(symDiffSet);

Output

Set { { name: 'John' }, { name: 'Doe' } }

Summary

In this JavaScript tutorial, we learned about symmetricDifference() method of Set: the syntax and few working examples with output and detailed explanation for each example.