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type SPEC = {
readonly radix: number;
readonly unit: string[];
};
const si = {
radix: 1e3,
unit: ["b", "kb", "Mb", "Gb", "Tb", "Pb", "Eb", "Zb", "Yb"]
};
const iec = {
radix: 1024,
unit: ["b", "Kib", "Mib", "Gib", "Tib", "Pib", "Eib", "Zib", "Yib"]
};
const jedec = {
radix: 1024,
unit: ["b", "Kb", "Mb", "Gb", "Tb", "Pb", "Eb", "Zb", "Yb"]
};
export const SPECS: Record<string, SPEC> = {
si,
iec,
jedec
};
/**
* file size from https://github.com/hustcc/filesize.js
* @param bytes - The number of bytes to convert to human-readable format
* @param fixed - Number of decimal places to display (default: 1)
* @param spec - Size specification to use: "si", "iec", or "jedec" (default: "jedec")
* @returns Human-readable file size string
*/
export function filesize(bytes: number, fixed = 1, spec = "jedec"): string {
bytes = Math.abs(bytes);
const { radix, unit } = SPECS[spec] || SPECS.jedec;
let loop = 0;
while (bytes >= radix) {
bytes /= radix;
++loop;
}
return `${bytes.toFixed(fixed)} ${unit[loop]}`;
}
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