The _.xor() method returns an array of the symmetric difference of given arrays i.e. it will create an array that contains an element that doesn’t exist in any other array.
Syntax:
_.xor( arrays )
Parameters: This function accepts one or more parameters as mentioned above and described below:
- arrays: This parameter holds one or more arrays that need to inspect.
Return Value: It returns an array of symmetric difference of given arrays.
Example 1:
const _ = require('lodash'); let x = [3, 10, 100]; let y = [100, 10, 2]; let symmetricDifference = _.xor(x, y); console.log(symmetricDifference); |
Here, const _ = require('lodash') is used to import the lodash library into the file.
Output:
[ 3, 2 ]
Example 2:
const _ = require('lodash'); let x = [3, 10, 100]; let y = [100, 10, 2]; let z = [10, 500, 3]; let symmetricDifference = _.xor(x, y, z); console.log(symmetricDifference); |
Output:
[ 2, 500 ]
Example 3:
const _ = require('lodash'); let js = ['web', 'mobile-app']; let python = ['machine-learning', 'web']; let c = ['basic-programming', 'system-app']; let java = ['mobile-app', 'web', 'basic-programming']; let symmetricDifference = _.xor(js, python, c, java); console.log(symmetricDifference); |
Output:
[ 'machine-learning', 'system-app' ]
Note: This will not work in normal JavaScript because it requires the library lodash to be installed.
Reference: https://lodash.com/docs/4.17.15#xor
