1function formatBytes(bytes, decimals = 2) {
2    if (bytes === 0) return '0 Bytes';
3
4    const k = 1024;
5    const dm = decimals < 0 ? 0 : decimals;
6    const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
7
8    const i = Math.floor(Math.log(bytes) / Math.log(k));
9
10    return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
11}

1npm install currency-formatter --save

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