@newdash/newdash
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javascript/typescript utility library
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TypeScript
/**
* This method is like `union` except that it accepts `iteratee` which is
* invoked for each element of each `arrays` to generate the criterion by
* which uniqueness is computed. Result values are chosen from the first
* array in which the value occurs. The iteratee is invoked with one argument:
* (value).
*
* @since 5.11.0
* @category Array
* @param arrays The arrays to inspect.
* @param iteratee The iteratee invoked per element.
* @returns Returns the new array of combined values.
* @see [[difference]], [[union]], [[unionWith]], [[without]], [[xor]], [[xorBy]]
* @example
*
* ```js
* unionBy([2.1], [1.2, 2.3], Math.floor)
* // => [2.1, 1.2]
* ```
*/
export declare function unionBy<T>(...arrays: any[]): Array<T>;
export default unionBy;