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49 lines
1.6 KiB
JavaScript
49 lines
1.6 KiB
JavaScript
/**
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* lodash 3.1.1 (Custom Build) <https://lodash.com/>
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* Build: `lodash modern modularize exports="npm" -o ./`
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* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <https://lodash.com/license>
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*/
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var baseFlatten = require('lodash._baseflatten'),
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createWrapper = require('lodash._createwrapper'),
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restParam = require('lodash.restparam');
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/** Used to compose bitmasks for wrapper metadata. */
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var REARG_FLAG = 256;
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/**
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* Creates a function that invokes `func` with arguments arranged according
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* to the specified indexes where the argument value at the first index is
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* provided as the first argument, the argument value at the second index is
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* provided as the second argument, and so on.
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*
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* @static
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* @memberOf _
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* @category Function
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* @param {Function} func The function to rearrange arguments for.
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* @param {...(number|number[])} indexes The arranged argument indexes,
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* specified as individual indexes or arrays of indexes.
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* @returns {Function} Returns the new function.
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* @example
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*
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* var rearged = _.rearg(function(a, b, c) {
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* return [a, b, c];
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* }, 2, 0, 1);
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*
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* rearged('b', 'c', 'a')
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* // => ['a', 'b', 'c']
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*
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* var map = _.rearg(_.map, [1, 0]);
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* map(function(n) {
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* return n * 3;
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* }, [1, 2, 3]);
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* // => [3, 6, 9]
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*/
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var rearg = restParam(function(func, indexes) {
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return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes));
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});
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module.exports = rearg;
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