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import _curry1 from './internal/_curry1';import curryN from './curryN';

/** * Returns a new function much like the supplied one, except that the first two * arguments' order is reversed. * * @func * @memberOf R * @since v0.1.0 * @category Function * @sig ((a, b, c, ...) -> z) -> (b -> a -> c -> ... -> z) * @param {Function} fn The function to invoke with its first two parameters reversed. * @return {*} The result of invoking `fn` with its first two parameters' order reversed. * @example * *      const mergeThree = (a, b, c) => [].concat(a, b, c); * *      mergeThree(1, 2, 3); //=> [1, 2, 3] * *      R.flip(mergeThree)(1, 2, 3); //=> [2, 1, 3] * @symb R.flip(f)(a, b, c) = f(b, a, c) */var flip = _curry1(function flip(fn) {  return curryN(fn.length, function(a, b) {    var args = Array.prototype.slice.call(arguments, 0);    args[0] = b;    args[1] = a;    return fn.apply(this, args);  });});export default flip;