Is there an option to display in bits instead of bytes?

Yes, there is. The bits option allows you to format the number as bits instead of bytes.

According to the API documentation [index.d.ts:L23-L32], the bits option:

• Type: boolean
• Default: false
• Purpose: Format the number as bits instead of bytes, which can be useful when referring to bit rate.

Example usage:

prettyBytes(1337, {bits: true});
//=> '1.34 kbit'

When you enable this option, the output will use bit units (b, kbit, Mbit, Gbit, etc.) instead of byte units (B, kB, MB, GB, etc.). The implementation [index.js:L26-L32] handles this by selecting the appropriate unit array based on the bits and binary options.

FOLLOW_UPS:

• What unit strings are used for bits output?
• Can I combine bits option with binary prefix?
• How does the locale option affect bit formatting?