Lodash _.union() method is used to take n number of arrays and create an array of unique values in order, from all given arrays using SameValueZero for equality comparisons.
Syntax:
_.union(*arrays);Parameters:
- arrays: This parameter holds arrays to inspect.
Return Value:
- This method is used to return the new array of combined values.
Example 1: In this example, we are passing two different arrays into the _.union() method and printing the result in the console.
// 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);
Output:
[20, 12, 8, 15, 6]Example 2: In this example, we are passing three different arrays into the _.union() method and printing the result in the console.
// 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);
Output:
[1, 2, 3, 4, 5, 6, 7]