Lodash _.union() Method
The _.union() method is used to take n number of arrays and creates an array of unique values in order, from all given arrays using SameValueZero for equality comparisons.
Syntax:
_.union(*arrays)
Parameters: This method accepts a single parameter as mentioned above and described below:
- arrays: This parameter holds arrays to inspect.
Return Value: This method is used to return the new array of combined values.
Example 1: Here, const _ = require(‘lodash’) is used to import the lodash library in the file.
Javascript
// Requiring the lodash library const _ = require("lodash"); // Use of _.union() method let gfg = _.union([20, 12], [8, 15, 6]); // Printing the output console.log(gfg) |
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Output:
[20, 12, 8, 15, 6]
Example 2:
Javascript
// Requiring the lodash library const _ = require("lodash"); // Use of _.union() method let gfg = _.union([1, 2, 3], [3, 4, 5], [6, 2, 7]); // Printing the output console.log(gfg) |
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Output:
[1, 2, 3, 4, 5, 6, 7]
