1 | var _curry3 =
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2 | /*#__PURE__*/
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3 | require("./internal/_curry3");
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4 |
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5 | var _has =
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6 | /*#__PURE__*/
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7 | require("./internal/_has");
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8 | /**
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9 | * Creates a new object with the own properties of the two provided objects. If
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10 | * a key exists in both objects, the provided function is applied to the key
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11 | * and the values associated with the key in each object, with the result being
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12 | * used as the value associated with the key in the returned object.
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13 | *
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14 | * @func
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15 | * @memberOf R
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16 | * @since v0.19.0
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17 | * @category Object
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18 | * @sig ((String, a, a) -> a) -> {a} -> {a} -> {a}
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19 | * @param {Function} fn
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20 | * @param {Object} l
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21 | * @param {Object} r
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22 | * @return {Object}
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23 | * @see R.mergeDeepWithKey, R.merge, R.mergeWith
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24 | * @example
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25 | *
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26 | * let concatValues = (k, l, r) => k == 'values' ? R.concat(l, r) : r
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27 | * R.mergeWithKey(concatValues,
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28 | * { a: true, thing: 'foo', values: [10, 20] },
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29 | * { b: true, thing: 'bar', values: [15, 35] });
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30 | * //=> { a: true, b: true, thing: 'bar', values: [10, 20, 15, 35] }
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31 | * @symb R.mergeWithKey(f, { x: 1, y: 2 }, { y: 5, z: 3 }) = { x: 1, y: f('y', 2, 5), z: 3 }
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32 | */
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33 |
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34 |
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35 | var mergeWithKey =
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36 | /*#__PURE__*/
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37 | _curry3(function mergeWithKey(fn, l, r) {
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38 | var result = {};
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39 | var k;
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40 |
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41 | for (k in l) {
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42 | if (_has(k, l)) {
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43 | result[k] = _has(k, r) ? fn(k, l[k], r[k]) : l[k];
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44 | }
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45 | }
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46 |
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47 | for (k in r) {
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48 | if (_has(k, r) && !_has(k, result)) {
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49 | result[k] = r[k];
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50 | }
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51 | }
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52 |
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53 | return result;
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54 | });
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55 |
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56 | module.exports = mergeWithKey; |
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