33 lines
730 B
JavaScript
33 lines
730 B
JavaScript
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;
|