es-toolkit/dist/fp/array/union.js

A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

const require_union = require("../../array/union.js");
//#region src/fp/array/union.ts
/**
* Creates a function that returns unique values from the piped array and secondArray.
*
* Values keep their first occurrence order, matching the main {@link union} behavior.
* Use the returned function with {@link pipe}.
*
* @template T - The type of elements in the arrays.
* @param secondArray - Values to include after the piped array.
* @returns A function that maps a readonly array to its union with secondArray.
*
* @example
* import { pipe, union } from 'es-toolkit/fp';
*
* pipe([1, 2], union([2, 3]));
* // => [1, 2, 3]
*/
function union(secondArray) {
	return function(array) {
		return require_union.union(array, secondArray);
	};
}
//#endregion
exports.union = union;