71 lines
2.6 KiB
JavaScript
71 lines
2.6 KiB
JavaScript
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/**
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* Cesium - https://github.com/CesiumGS/cesium
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*
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* Copyright 2011-2020 Cesium Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Columbus View (Pat. Pend.)
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*
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* Portions licensed separately.
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* See https://github.com/CesiumGS/cesium/blob/master/LICENSE.md for full licensing details.
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*/
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define(['exports', './when-8d13db60', './Check-70bec281'], function (exports, when, Check) { 'use strict';
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/**
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* Fill an array or a portion of an array with a given value.
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*
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* @param {Array} array The array to fill.
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* @param {*} value The value to fill the array with.
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* @param {Number} [start=0] The index to start filling at.
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* @param {Number} [end=array.length] The index to end stop at.
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*
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* @returns {Array} The resulting array.
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* @private
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*/
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function arrayFill(array, value, start, end) {
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//>>includeStart('debug', pragmas.debug);
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Check.Check.defined('array', array);
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Check.Check.defined('value', value);
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if (when.defined(start)) {
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Check.Check.typeOf.number('start', start);
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}
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if (when.defined(end)) {
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Check.Check.typeOf.number('end', end);
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}
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//>>includeEnd('debug');
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if (typeof array.fill === 'function') {
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return array.fill(value, start, end);
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}
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var length = array.length >>> 0;
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var relativeStart = when.defaultValue(start, 0);
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// If negative, find wrap around position
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var k = (relativeStart < 0) ? Math.max(length + relativeStart, 0) : Math.min(relativeStart, length);
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var relativeEnd = when.defaultValue(end, length);
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// If negative, find wrap around position
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var last = (relativeEnd < 0) ? Math.max(length + relativeEnd, 0) : Math.min(relativeEnd, length);
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// Fill array accordingly
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while (k < last) {
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array[k] = value;
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k++;
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}
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return array;
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}
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exports.arrayFill = arrayFill;
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});
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