source: trip-planner-front/node_modules/lodash/differenceBy.js@ 8d391a1

Last change on this file since 8d391a1 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1var baseDifference = require('./_baseDifference'),
2 baseFlatten = require('./_baseFlatten'),
3 baseIteratee = require('./_baseIteratee'),
4 baseRest = require('./_baseRest'),
5 isArrayLikeObject = require('./isArrayLikeObject'),
6 last = require('./last');
7
8/**
9 * This method is like `_.difference` except that it accepts `iteratee` which
10 * is invoked for each element of `array` and `values` to generate the criterion
11 * by which they're compared. The order and references of result values are
12 * determined by the first array. The iteratee is invoked with one argument:
13 * (value).
14 *
15 * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
16 *
17 * @static
18 * @memberOf _
19 * @since 4.0.0
20 * @category Array
21 * @param {Array} array The array to inspect.
22 * @param {...Array} [values] The values to exclude.
23 * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
24 * @returns {Array} Returns the new array of filtered values.
25 * @example
26 *
27 * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
28 * // => [1.2]
29 *
30 * // The `_.property` iteratee shorthand.
31 * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
32 * // => [{ 'x': 2 }]
33 */
34var differenceBy = baseRest(function(array, values) {
35 var iteratee = last(values);
36 if (isArrayLikeObject(iteratee)) {
37 iteratee = undefined;
38 }
39 return isArrayLikeObject(array)
40 ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), baseIteratee(iteratee, 2))
41 : [];
42});
43
44module.exports = differenceBy;
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