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Last change
on this file since d565449 was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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File size:
564 bytes
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| 1 | 'use strict';
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| 2 |
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| 3 | /**
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| 4 | * Syntactic sugar for invoking a function and expanding an array for arguments.
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| 5 | *
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| 6 | * Common use case would be to use `Function.prototype.apply`.
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| 7 | *
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| 8 | * ```js
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| 9 | * function f(x, y, z) {}
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| 10 | * var args = [1, 2, 3];
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| 11 | * f.apply(null, args);
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| 12 | * ```
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| 13 | *
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| 14 | * With `spread` this example can be re-written.
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| 15 | *
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| 16 | * ```js
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| 17 | * spread(function(x, y, z) {})([1, 2, 3]);
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| 18 | * ```
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| 19 | *
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| 20 | * @param {Function} callback
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| 21 | *
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| 22 | * @returns {Function}
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| 23 | */
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| 24 | export default function spread(callback) {
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| 25 | return function wrap(arr) {
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| 26 | return callback.apply(null, arr);
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| 27 | };
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| 28 | }
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