JavaScript library to generate a human readable String describing the file size
The filesize npm package is a library designed to provide simple file size conversion and formatting. It allows users to convert raw file size numbers into human-readable strings, with support for multiple units and customization options. This can be particularly useful in applications where file sizes need to be displayed to users in a format that is easy to understand.
Basic file size formatting
Converts a file size in bytes to a human-readable string using the most appropriate unit. In this example, 1024 bytes are converted to '1 KB'.
"const filesize = require('filesize');
console.log(filesize(1024)); // '1 KB'"Customizing the output
Allows customization of the output format, including rounding and the spacer between the number and the unit. This example shows no rounding and removes the space between the number and the unit.
"const filesize = require('filesize');
console.log(filesize(1024, {round: 0, spacer: ''})); // '1KB'"Using different units
Supports using different unit standards, such as the International Electrotechnical Commission (IEC) standard, which uses 'KiB' instead of 'KB' for 1024 bytes.
"const filesize = require('filesize');
console.log(filesize(1024, {standard: 'iec'})); // '1 KiB'"Similar to filesize, pretty-bytes converts byte values into a human-readable format. It focuses on simplicity and does not offer as many customization options as filesize, making it a good choice for straightforward use cases.
The bytes package also provides functionality for formatting byte sizes into human-readable strings. It offers a balance between simplicity and customization, with options to specify the number of decimal places and the units to use.
filesize.js provides a simple way to get a human readable file size string from a number (float or integer) or string.
filesize() accepts an optional descriptor Object as a second argument, so you can customize the output.
(boolean) Enables bit sizes, default is false
(boolean) Enables unix style human readable output, e.g ls -lh, default is false
(number) Number base, default is 10
(number) Decimal place, default is 2
(string) Character between the result and suffix, default is " "
filesize(500); // "500 B"
filesize(500, {bits: true}); // "4.00 kb"
filesize(265318); // "265.32 kB"
filesize(265318, {base: 2}); // "259.10 kB"
filesize(265318, {base: 2, round: 1}); // "259.1 kB"
filesize.js supports AMD loaders (require.js, curl.js, etc.), node.js & npm (npm install filesize), or using a script tag.
If you're having problems, use the support forum at CodersClan.
Copyright (c) 2013 Jason Mulligan
Licensed under the BSD-3 license.
FAQs
JavaScript library to generate a human readable String describing the file size
The npm package filesize receives a total of 6,155,473 weekly downloads. As such, filesize popularity was classified as popular.
We found that filesize demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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