source: trip-planner-front/node_modules/lodash/uniqBy.js@ 188ee53

Last change on this file since 188ee53 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1var baseIteratee = require('./_baseIteratee'),
2 baseUniq = require('./_baseUniq');
3
4/**
5 * This method is like `_.uniq` except that it accepts `iteratee` which is
6 * invoked for each element in `array` to generate the criterion by which
7 * uniqueness is computed. The order of result values is determined by the
8 * order they occur in the array. The iteratee is invoked with one argument:
9 * (value).
10 *
11 * @static
12 * @memberOf _
13 * @since 4.0.0
14 * @category Array
15 * @param {Array} array The array to inspect.
16 * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
17 * @returns {Array} Returns the new duplicate free array.
18 * @example
19 *
20 * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
21 * // => [2.1, 1.2]
22 *
23 * // The `_.property` iteratee shorthand.
24 * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
25 * // => [{ 'x': 1 }, { 'x': 2 }]
26 */
27function uniqBy(array, iteratee) {
28 return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : [];
29}
30
31module.exports = uniqBy;
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