1 | import _curry2 from "./internal/_curry2.js";
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2 | import _dispatchable from "./internal/_dispatchable.js";
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3 | import _filter from "./internal/_filter.js";
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4 | import _isObject from "./internal/_isObject.js";
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5 | import _reduce from "./internal/_reduce.js";
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6 | import _xfilter from "./internal/_xfilter.js";
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7 | import keys from "./keys.js";
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8 | /**
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9 | * Takes a predicate and a `Filterable`, and returns a new filterable of the
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10 | * same type containing the members of the given filterable which satisfy the
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11 | * given predicate. Filterable objects include plain objects or any object
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12 | * that has a filter method such as `Array`.
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13 | *
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14 | * Dispatches to the `filter` method of the second argument, if present.
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15 | *
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16 | * Acts as a transducer if a transformer is given in list position.
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17 | *
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18 | * @func
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19 | * @memberOf R
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20 | * @since v0.1.0
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21 | * @category List
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22 | * @sig Filterable f => (a -> Boolean) -> f a -> f a
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23 | * @param {Function} pred
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24 | * @param {Array} filterable
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25 | * @return {Array} Filterable
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26 | * @see R.reject, R.transduce, R.addIndex
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27 | * @example
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28 | *
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29 | * const isEven = n => n % 2 === 0;
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30 | *
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31 | * R.filter(isEven, [1, 2, 3, 4]); //=> [2, 4]
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32 | *
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33 | * R.filter(isEven, {a: 1, b: 2, c: 3, d: 4}); //=> {b: 2, d: 4}
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34 | */
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35 |
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36 | var filter =
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37 | /*#__PURE__*/
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38 | _curry2(
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39 | /*#__PURE__*/
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40 | _dispatchable(['filter'], _xfilter, function (pred, filterable) {
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41 | return _isObject(filterable) ? _reduce(function (acc, key) {
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42 | if (pred(filterable[key])) {
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43 | acc[key] = filterable[key];
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44 | }
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45 |
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46 | return acc;
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47 | }, {}, keys(filterable)) : // else
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48 | _filter(pred, filterable);
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49 | }));
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50 |
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51 | export default filter; |
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