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Lodash | _.xor() Method
  • Last Updated : 08 May, 2020

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:



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const _ = require('lodash');
  
let x = [3, 10, 100];
  
let y = [100, 10, 2];
  
let symmetricDifference = _.xor(x, y);
  
console.log(symmetricDifference);

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Here, const _ = require('lodash') is used to import the lodash library into the file.

Output:

[ 3, 2 ]

Example 2:

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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);

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Output:

[ 2, 500 ]

Example 3:

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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);

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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

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