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on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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[6a3a178] | 1 | var baseNth = require('./_baseNth'),
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| 2 | baseRest = require('./_baseRest'),
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| 3 | toInteger = require('./toInteger');
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| 4 |
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| 5 | /**
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| 6 | * Creates a function that gets the argument at index `n`. If `n` is negative,
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| 7 | * the nth argument from the end is returned.
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| 8 | *
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| 9 | * @static
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| 10 | * @memberOf _
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| 11 | * @since 4.0.0
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| 12 | * @category Util
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| 13 | * @param {number} [n=0] The index of the argument to return.
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| 14 | * @returns {Function} Returns the new pass-thru function.
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| 15 | * @example
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| 16 | *
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| 17 | * var func = _.nthArg(1);
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| 18 | * func('a', 'b', 'c', 'd');
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| 19 | * // => 'b'
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| 20 | *
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| 21 | * var func = _.nthArg(-2);
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| 22 | * func('a', 'b', 'c', 'd');
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| 23 | * // => 'c'
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| 24 | */
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| 25 | function nthArg(n) {
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| 26 | n = toInteger(n);
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| 27 | return baseRest(function(args) {
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| 28 | return baseNth(args, n);
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| 29 | });
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| 30 | }
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| 31 |
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| 32 | module.exports = nthArg;
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