1var baseNth = require('./_baseNth'), 2 baseRest = require('./_baseRest'), 3 toInteger = require('./toInteger'); 4 5/** 6 * Creates a function that gets the argument at index `n`. If `n` is negative, 7 * the nth argument from the end is returned. 8 * 9 * @static 10 * @memberOf _ 11 * @since 4.0.0 12 * @category Util 13 * @param {number} [n=0] The index of the argument to return. 14 * @returns {Function} Returns the new pass-thru function. 15 * @example 16 * 17 * var func = _.nthArg(1); 18 * func('a', 'b', 'c', 'd'); 19 * // => 'b' 20 * 21 * var func = _.nthArg(-2); 22 * func('a', 'b', 'c', 'd'); 23 * // => 'c' 24 */ 25function nthArg(n) { 26 n = toInteger(n); 27 return baseRest(function(args) { 28 return baseNth(args, n); 29 }); 30} 31 32module.exports = nthArg; 33