@cch137/format-utils/dist/bytes/index.js

A collection of utility modules for formatting and processing data

export default function formatBytes(fileSizeByte = 0, toFix = 2, spaceBeforeUnit = true) {
    const d = parseInt(`${Math.log(fileSizeByte) / Math.log(1024)}`) || 0;
    return `${(fileSizeByte / Math.pow(1024, d > 5 ? 5 : d)).toFixed(toFix)}${spaceBeforeUnit ? " " : ""}${["", ..."KMGTP"][d > 5 ? 5 : d]}B`;
}