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import _curry2 from './internal/_curry2';import _isArray from './internal/_isArray';import _isFunction from './internal/_isFunction';import _isString from './internal/_isString';import toString from './toString';

/** * Returns the result of concatenating the given lists or strings. * * Note: `R.concat` expects both arguments to be of the same type, * unlike the native `Array.prototype.concat` method. It will throw * an error if you `concat` an Array with a non-Array value. * * Dispatches to the `concat` method of the first argument, if present. * Can also concatenate two members of a [fantasy-land * compatible semigroup](https://github.com/fantasyland/fantasy-land#semigroup). * * @func * @memberOf R * @since v0.1.0 * @category List * @sig [a] -> [a] -> [a] * @sig String -> String -> String * @param {Array|String} firstList The first list * @param {Array|String} secondList The second list * @return {Array|String} A list consisting of the elements of `firstList` followed by the elements of * `secondList`. * * @example * *      R.concat('ABC', 'DEF'); // 'ABCDEF' *      R.concat([4, 5, 6], [1, 2, 3]); //=> [4, 5, 6, 1, 2, 3] *      R.concat([], []); //=> [] */var concat = _curry2(function concat(a, b) {  if (_isArray(a)) {    if (_isArray(b)) {      return a.concat(b);    }    throw new TypeError(toString(b) + ' is not an array');  }  if (_isString(a)) {    if (_isString(b)) {      return a + b;    }    throw new TypeError(toString(b) + ' is not a string');  }  if (a != null && _isFunction(a['fantasy-land/concat'])) {    return a['fantasy-land/concat'](b);  }  if (a != null && _isFunction(a.concat)) {    return a.concat(b);  }  throw new TypeError(toString(a) + ' does not have a method named "concat" or "fantasy-land/concat"');});export default concat;