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Name	Size	Last Modified
[F]index.d.ts	3.34 KB	2022-10-08 17:28:19
[F]index.js Edit	2.48 KB	2022-10-08 17:28:19
[F]license	1.09 KB	2022-10-08 17:28:18
[F]package.json Edit	759 bytes	2022-10-08 17:28:19
[F]readme.md Edit	3.62 KB	2022-10-08 17:28:19

Editing: index.js

'use strict';

const BYTE_UNITS = [
	'B',
	'kB',
	'MB',
	'GB',
	'TB',
	'PB',
	'EB',
	'ZB',
	'YB'
];

const BIBYTE_UNITS = [
	'B',
	'kiB',
	'MiB',
	'GiB',
	'TiB',
	'PiB',
	'EiB',
	'ZiB',
	'YiB'
];

const BIT_UNITS = [
	'b',
	'kbit',
	'Mbit',
	'Gbit',
	'Tbit',
	'Pbit',
	'Ebit',
	'Zbit',
	'Ybit'
];

const BIBIT_UNITS = [
	'b',
	'kibit',
	'Mibit',
	'Gibit',
	'Tibit',
	'Pibit',
	'Eibit',
	'Zibit',
	'Yibit'
];

/*
Formats the given number using `Number#toLocaleString`.
- If locale is a string, the value is expected to be a locale-key (for example: `de`).
- If locale is true, the system default locale is used for translation.
- If no value for locale is specified, the number is returned unmodified.
*/
const toLocaleString = (number, locale, options) => {
	let result = number;
	if (typeof locale === 'string' || Array.isArray(locale)) {
		result = number.toLocaleString(locale, options);
	} else if (locale === true || options !== undefined) {
		result = number.toLocaleString(undefined, options);
	}

return result;
};

module.exports = (number, options) => {
	if (!Number.isFinite(number)) {
		throw new TypeError(`Expected a finite number, got ${typeof number}: ${number}`);
	}

options = Object.assign({bits: false, binary: false}, options);

const UNITS = options.bits ?
		(options.binary ? BIBIT_UNITS : BIT_UNITS) :
		(options.binary ? BIBYTE_UNITS : BYTE_UNITS);

if (options.signed && number === 0) {
		return ` 0 ${UNITS[0]}`;
	}

const isNegative = number < 0;
	const prefix = isNegative ? '-' : (options.signed ? '+' : '');

if (isNegative) {
		number = -number;
	}

let localeOptions;

if (options.minimumFractionDigits !== undefined) {
		localeOptions = {minimumFractionDigits: options.minimumFractionDigits};
	}

if (options.maximumFractionDigits !== undefined) {
		localeOptions = Object.assign({maximumFractionDigits: options.maximumFractionDigits}, localeOptions);
	}

if (number < 1) {
		const numberString = toLocaleString(number, options.locale, localeOptions);
		return prefix + numberString + ' ' + UNITS[0];
	}

const exponent = Math.min(Math.floor(options.binary ? Math.log(number) / Math.log(1024) : Math.log10(number) / 3), UNITS.length - 1);
	// eslint-disable-next-line unicorn/prefer-exponentiation-operator
	number /= Math.pow(options.binary ? 1024 : 1000, exponent);

if (!localeOptions) {
		number = number.toPrecision(3);
	}

const numberString = toLocaleString(Number(number), options.locale, localeOptions);

const unit = UNITS[exponent];

return prefix + numberString + ' ' + unit;
};

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