HORIZON PROJECT

var createWrap = require('./_createWrap');

/** Used to compose bitmasks for function metadata. */

var WRAP_ARY_FLAG = 128;

/**

 * Creates a function that invokes `func`, with up to `n` arguments,

 * ignoring any additional arguments.

 *

 * @static

 * @memberOf _

 * @since 3.0.0

 * @category Function

 * @param {Function} func The function to cap arguments for.

 * @param {number} [n=func.length] The arity cap.

 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.

 * @returns {Function} Returns the new capped function.

 * @example

 *

 * _.map(['6', '8', '10'], _.ary(parseInt, 1));

 * // => [6, 8, 10]

 */

function ary(func, n, guard) {

  n = guard ? undefined : n;

  n = (func && n == null) ? func.length : n;

  return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);

}

module.exports = ary;