bigbytes

Utility to parse a string bytes (ex: 1TB) to a big.js bytes (1099511627776) and vice-versa.

This is bytes.js, modified to accept/return big.js numbers.

Install

npm install bigbytes

Usage

var bytes = require('bigbytes')

bytes.format(Big value, [options]): string｜null

Format the given value in bytes into a string. If the value is negative, it is kept as such. If it is a float, it is rounded.

Arguments

| Name | Type | Description | |---------|----------|--------------------| | value | Big | Value in bytes | | options | Object | Conversion options |

Options

| Property | Type | Description | |-------------------|--------|-----------------------------------------------------------------------------------------| | decimalPlaces | number｜null | Maximum number of decimal places to include in output. Default value to 2. | | fixedDecimals | boolean｜null | Whether to always display the maximum number of decimal places. Default value to false | | thousandsSeparator | string｜null | Example of values: ' ', ',' and .... Default value to ''. | | unit | string｜null | The unit in which the result will be returned (B/KB/MB/GB/TB). Default value to '' (which means auto detect). | | unitSeparator | string｜null | Separator to use between number and unit. Default value to ''. |

Returns

| Name | Type | Description | |---------|------------------|-------------------------------------------------| | results | string｜null | Return null upon error. String value otherwise. |

Example

var bytes = require('bigbytes')
var Big = require('big.js')

bytes(Big(1024))
// output: '1KB'

bytes(Big(1000))
// output: '1000B'

bytes(Big(1000), {thousandsSeparator: ' '})
// output: '1 000B'

bytes(Big(1024 * 1.7), {decimalPlaces: 0})
// output: '2KB'

bytes(Big(1024), {unitSeparator: ' '})
// output: '1 KB'

bytes.parse(string｜number value): Big｜null

Parse the string value into an integer in bytes. If no unit is given, or value is a number, it is assumed the value is in bytes.

Supported units and abbreviations are as follows and are case-insensitive:

• b for bytes
• kb for kilobytes
• mb for megabytes
• gb for gigabytes
• tb for terabytes

The units are in powers of two, not ten. This means 1kb = 1024b according to this parser.

Arguments

| Name | Type | Description | |---------------|--------|--------------------| | value | string｜number | String to parse, or number in bytes. |

Returns

| Name | Type | Description | |---------|-------------|-------------------------| | results | Big｜null | Return null upon error. Value in bytes otherwise. |

Example

var bytes = require('bigbytes')
var Big = require('big.js')

bytes('1KB')
// output: Big(1024)

bytes('1024')
// output: Big(1024)

bytes(1024)
// output: Big(1024)

Contribute

Feel free to dive in! Open an issue or submit PRs.

License

MIT