| var baseNth = require('./_baseNth'), |
| baseRest = require('./_baseRest'), |
| toInteger = require('./toInteger'); |
| |
| /** |
| * Creates a function that gets the argument at index `n`. If `n` is negative, |
| * the nth argument from the end is returned. |
| * |
| * @static |
| * @memberOf _ |
| * @since 4.0.0 |
| * @category Util |
| * @param {number} [n=0] The index of the argument to return. |
| * @returns {Function} Returns the new pass-thru function. |
| * @example |
| * |
| * var func = _.nthArg(1); |
| * func('a', 'b', 'c', 'd'); |
| * // => 'b' |
| * |
| * var func = _.nthArg(-2); |
| * func('a', 'b', 'c', 'd'); |
| * // => 'c' |
| */ |
| function nthArg(n) { |
| n = toInteger(n); |
| return baseRest(function(args) { |
| return baseNth(args, n); |
| }); |
| } |
| |
| module.exports = nthArg; |