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82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
/**
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* lodash 3.2.1 (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 1.8.2 <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 isIterateeCall = require('lodash._isiterateecall');
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/**
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* The base implementation of `_.fill` without an iteratee call guard.
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*
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* @private
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* @param {Array} array The array to fill.
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* @param {*} value The value to fill `array` with.
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* @param {number} [start=0] The start position.
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* @param {number} [end=array.length] The end position.
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* @returns {Array} Returns `array`.
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*/
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function baseFill(array, value, start, end) {
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var length = array.length;
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start = start == null ? 0 : (+start || 0);
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if (start < 0) {
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start = -start > length ? 0 : (length + start);
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}
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end = (typeof end == 'undefined' || end > length) ? length : (+end || 0);
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if (end < 0) {
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end += length;
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}
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length = start > end ? 0 : (end >>> 0);
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start >>>= 0;
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while (start < length) {
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array[start++] = value;
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}
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return array;
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}
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/**
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* Fills elements of `array` with `value` from `start` up to, but not
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* including, `end`.
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*
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* **Note:** This method mutates `array`.
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*
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* @static
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* @memberOf _
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* @category Array
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* @param {Array} array The array to fill.
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* @param {*} value The value to fill `array` with.
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* @param {number} [start=0] The start position.
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* @param {number} [end=array.length] The end position.
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* @returns {Array} Returns `array`.
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* @example
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*
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* var array = [1, 2, 3];
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*
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* _.fill(array, 'a');
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* console.log(array);
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* // => ['a', 'a', 'a']
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*
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* _.fill(Array(3), 2);
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* // => [2, 2, 2]
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*
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* _.fill([4, 6, 8], '*', 1, 2);
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* // => [4, '*', 8]
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*/
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function fill(array, value, start, end) {
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var length = array ? array.length : 0;
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if (!length) {
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return [];
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}
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if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
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start = 0;
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end = length;
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}
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return baseFill(array, value, start, end);
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}
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module.exports = fill;
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