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import _curry3 from './internal/_curry3';import _has from './internal/_has';

/** * Creates a new object with the own properties of the two provided objects. If * a key exists in both objects, the provided function is applied to the key * and the values associated with the key in each object, with the result being * used as the value associated with the key in the returned object. * * @func * @memberOf R * @since v0.19.0 * @category Object * @sig ((String, a, a) -> a) -> {a} -> {a} -> {a} * @param {Function} fn * @param {Object} l * @param {Object} r * @return {Object} * @see R.mergeDeepWithKey, R.merge, R.mergeWith * @example * *      let concatValues = (k, l, r) => k == 'values' ? R.concat(l, r) : r *      R.mergeWithKey(concatValues, *                     { a: true, thing: 'foo', values: [10, 20] }, *                     { b: true, thing: 'bar', values: [15, 35] }); *      //=> { a: true, b: true, thing: 'bar', values: [10, 20, 15, 35] } * @symb R.mergeWithKey(f, { x: 1, y: 2 }, { y: 5, z: 3 }) = { x: 1, y: f('y', 2, 5), z: 3 } */var mergeWithKey = _curry3(function mergeWithKey(fn, l, r) {  var result = {};  var k;
  for (k in l) {    if (_has(k, l)) {      result[k] = _has(k, r) ? fn(k, l[k], r[k]) : l[k];    }  }
  for (k in r) {    if (_has(k, r) && !(_has(k, result))) {      result[k] = r[k];    }  }
  return result;});export default mergeWithKey;