union source npm

_.union([arrays])

Creates an array of unique values, in order, from all of the provided arrays using SameValueZero for equality comparisons.

Arguments

  1. [arrays] (...Array)

    The arrays to inspect.

Returns (Array)

Returns the new array of combined values.

Example

_.union([2, 1], [4, 2], [1, 2]);
// => [2, 1, 4]