declare namespace prettyBytes { | |
interface Options { | |
/** | |
Include plus sign for positive numbers. If the difference is exactly zero a space character will be prepended instead for better alignment. | |
@default false | |
*/ | |
readonly signed?: boolean; | |
/** | |
- If `false`: Output won't be localized. | |
- If `true`: Localize the output using the system/browser locale. | |
- If `string`: Expects a [BCP 47 language tag](https://en.wikipedia.org/wiki/IETF_language_tag) (For example: `en`, `de`, …) | |
- If `string[]`: Expects a list of [BCP 47 language tags](https://en.wikipedia.org/wiki/IETF_language_tag) (For example: `en`, `de`, …) | |
__Note:__ Localization should generally work in browsers. Node.js needs to be [built](https://github.com/nodejs/node/wiki/Intl) with `full-icu` or `system-icu`. Alternatively, the [`full-icu`](https://github.com/unicode-org/full-icu-npm) module can be used to provide support at runtime. | |
@default false | |
*/ | |
readonly locale?: boolean | string | readonly string[]; | |
/** | |
Format the number as [bits](https://en.wikipedia.org/wiki/Bit) instead of [bytes](https://en.wikipedia.org/wiki/Byte). This can be useful when, for example, referring to [bit rate](https://en.wikipedia.org/wiki/Bit_rate). | |
@default false | |
@example | |
``` | |
import prettyBytes = require('pretty-bytes'); | |
prettyBytes(1337, {bits: true}); | |
//=> '1.34 kbit' | |
``` | |
*/ | |
readonly bits?: boolean; | |
/** | |
Format the number using the [Binary Prefix](https://en.wikipedia.org/wiki/Binary_prefix) instead of the [SI Prefix](https://en.wikipedia.org/wiki/SI_prefix). This can be useful for presenting memory amounts. However, this should not be used for presenting file sizes. | |
@default false | |
@example | |
``` | |
import prettyBytes = require('pretty-bytes'); | |
prettyBytes(1000, {binary: true}); | |
//=> '1000 bit' | |
prettyBytes(1024, {binary: true}); | |
//=> '1 kiB' | |
``` | |
*/ | |
readonly binary?: boolean; | |
/** | |
The minimum number of fraction digits to display. | |
If neither `minimumFractionDigits` or `maximumFractionDigits` are set, the default behavior is to round to 3 significant digits. | |
@default undefined | |
``` | |
import prettyBytes = require('pretty-bytes'); | |
// Show the number with at least 3 fractional digits | |
prettyBytes(1900, {minimumFractionDigits: 3}); | |
//=> '1.900 kB' | |
prettyBytes(1900); | |
//=> '1.9 kB' | |
``` | |
*/ | |
readonly minimumFractionDigits?: number; | |
/** | |
The maximum number of fraction digits to display. | |
If neither `minimumFractionDigits` or `maximumFractionDigits` are set, the default behavior is to round to 3 significant digits. | |
@default undefined | |
``` | |
import prettyBytes = require('pretty-bytes'); | |
// Show the number with at most 1 fractional digit | |
prettyBytes(1920, {maximumFractionDigits: 1}); | |
//=> '1.9 kB' | |
prettyBytes(1920); | |
//=> '1.92 kB' | |
``` | |
*/ | |
readonly maximumFractionDigits?: number; | |
} | |
} | |
/** | |
Convert bytes to a human readable string: `1337` → `1.34 kB`. | |
@param number - The number to format. | |
@example | |
``` | |
import prettyBytes = require('pretty-bytes'); | |
prettyBytes(1337); | |
//=> '1.34 kB' | |
prettyBytes(100); | |
//=> '100 B' | |
// Display file size differences | |
prettyBytes(42, {signed: true}); | |
//=> '+42 B' | |
// Localized output using German locale | |
prettyBytes(1337, {locale: 'de'}); | |
//=> '1,34 kB' | |
``` | |
*/ | |
declare function prettyBytes( | |
number: number, | |
options?: prettyBytes.Options | |
): string; | |
export = prettyBytes; | |