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Last change
on this file since d565449 was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
Update repo after prototype presentation
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[d565449] | 1 | import createWrap from './_createWrap.js';
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| 2 |
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| 3 | /** Used to compose bitmasks for function metadata. */
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| 4 | var WRAP_ARY_FLAG = 128;
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| 5 |
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| 6 | /**
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| 7 | * Creates a function that invokes `func`, with up to `n` arguments,
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| 8 | * ignoring any additional arguments.
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| 9 | *
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| 10 | * @static
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| 11 | * @memberOf _
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| 12 | * @since 3.0.0
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| 13 | * @category Function
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| 14 | * @param {Function} func The function to cap arguments for.
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| 15 | * @param {number} [n=func.length] The arity cap.
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| 16 | * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
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| 17 | * @returns {Function} Returns the new capped function.
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| 18 | * @example
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| 19 | *
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| 20 | * _.map(['6', '8', '10'], _.ary(parseInt, 1));
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| 21 | * // => [6, 8, 10]
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| 22 | */
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| 23 | function ary(func, n, guard) {
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| 24 | n = guard ? undefined : n;
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| 25 | n = (func && n == null) ? func.length : n;
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| 26 | return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
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| 27 | }
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| 28 |
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| 29 | export default ary;
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