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