1 | var _curry2 =
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2 | /*#__PURE__*/
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3 | require("./internal/_curry2");
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4 |
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5 | var _dispatchable =
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6 | /*#__PURE__*/
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7 | require("./internal/_dispatchable");
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8 |
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9 | var _xfindLast =
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10 | /*#__PURE__*/
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11 | require("./internal/_xfindLast");
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12 | /**
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13 | * Returns the last element of the list which matches the predicate, or
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14 | * `undefined` if no element matches.
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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 v0.1.1
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21 | * @category List
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22 | * @sig (a -> Boolean) -> [a] -> a | undefined
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23 | * @param {Function} fn The predicate function used to determine if the element is the
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24 | * desired one.
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25 | * @param {Array} list The array to consider.
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26 | * @return {Object} The element found, or `undefined`.
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27 | * @see R.transduce
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28 | * @example
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29 | *
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30 | * const xs = [{a: 1, b: 0}, {a:1, b: 1}];
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31 | * R.findLast(R.propEq('a', 1))(xs); //=> {a: 1, b: 1}
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32 | * R.findLast(R.propEq('a', 4))(xs); //=> undefined
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33 | */
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34 |
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35 |
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36 | var findLast =
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37 | /*#__PURE__*/
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38 | _curry2(
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39 | /*#__PURE__*/
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40 | _dispatchable([], _xfindLast, function findLast(fn, list) {
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41 | var idx = list.length - 1;
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42 |
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43 | while (idx >= 0) {
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44 | if (fn(list[idx])) {
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45 | return list[idx];
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46 | }
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47 |
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48 | idx -= 1;
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49 | }
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50 | }));
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51 |
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52 | module.exports = findLast; |
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