Source: util/format_storage.es.js

  1. /**
  2.  * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
  3.  *
  4.  * This library is free software; you can redistribute it and/or modify it under
  5.  * the terms of the GNU Lesser General Public License as published by the Free
  6.  * Software Foundation; either version 2.1 of the License, or (at your option)
  7.  * any later version.
  8.  *
  9.  * This library is distributed in the hope that it will be useful, but WITHOUT
  10.  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  11.  * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
  12.  * details.
  13.  */
  15. const DEFAULT_OPTIONS = {
  16. 	addSpaceBeforeSuffix: false,
  17. 	decimalSeparator: '.',
  18. 	denominator: 1024.0,
  19. 	suffixGB: 'GB',
  20. 	suffixKB: 'KB',
  21. 	suffixMB: 'MB',
  22. };
  24. /**
  25.  * Returns storage number formatted as a String
  26.  * @param {!Number} size Storage size to be formatted
  27.  * @param {Object} options Object representing optional parameters for
  28.  * formatting storage size
  29.  * @return {String} formattedStorage Final formatted storage outputted as a String
  30.  * @review
  31.  */
  32. export default function formatStorage(size, options = {}) {
  33. 	const {
  34. 		addSpaceBeforeSuffix,
  35. 		decimalSeparator,
  36. 		denominator,
  37. 		suffixGB,
  38. 		suffixKB,
  39. 		suffixMB,
  40. 	} = {
  41. 		...DEFAULT_OPTIONS,
  42. 		...options,
  43. 	};
  45. 	if (typeof size !== 'number') {
  46. 		throw new TypeError('Parameter size must be a number');
  47. 	}
  49. 	let decimalPlaces = 0;
  50. 	let suffix = suffixKB;
  52. 	size /= denominator;
  54. 	if (size >= denominator) {
  55. 		suffix = suffixMB;
  57. 		size /= denominator;
  58. 		decimalPlaces = 1;
  59. 	}
  61. 	if (size >= denominator) {
  62. 		suffix = suffixGB;
  64. 		size /= denominator;
  65. 		decimalPlaces = 1;
  66. 	}
  68. 	let fixedSize = size.toFixed(decimalPlaces);
  70. 	if (decimalSeparator !== '.') {
  71. 		fixedSize = fixedSize.replace(/\./, decimalSeparator);
  72. 	}
  74. 	return fixedSize + (addSpaceBeforeSuffix ? ' ' : '') + suffix;
  75. }