1  var createWrap = require('./_createWrap');
 2  
 3  /** Used to compose bitmasks for function metadata. */
 4  var WRAP_ARY_FLAG = 128;
 5  
 6  /**
 7   * Creates a function that invokes `func`, with up to `n` arguments,
 8   * ignoring any additional arguments.
 9   *
10   * @static
11   * @memberOf _
12   * @since 3.0.0
13   * @category Function
14   * @param {Function} func The function to cap arguments for.
15   * @param {number} [n=func.length] The arity cap.
16   * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
17   * @returns {Function} Returns the new capped function.
18   * @example
19   *
20   * _.map(['6', '8', '10'], _.ary(parseInt, 1));
21   * // => [6, 8, 10]
22   */
23  function ary(func, n, guard) {
24    n = guard ? undefined : n;
25    n = (func && n == null) ? func.length : n;
26    return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
27  }
28  
29  module.exports = ary;