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