What units (KB, MB, GB...) does this support?

The pretty-bytes library supports multiple unit systems depending on the options you choose:

For bytes (default): Defined in [index.js:L1-L9], the BYTE_UNITS array supports: B, kB, MB, GB, TB, PB, EB, ZB, YB

For binary format (with binary: true option): Defined in [index.js:L11-L19], the BIBYTE_UNITS array supports: B, KiB, MiB, GiB, TiB, PiB, EiB, ZiB, YiB

For bits (with bits: true option): Defined in [index.js:L21-L29], the BIT_UNITS array supports: b, kbit, Mbit, Gbit, Tbit, Pbit, Ebit, Zbit, Ybit

For binary bits (with both bits: true and binary: true options): Defined in [index.js:L31-L39], the BIBIT_UNITS array supports: b, kibit, Mibit, Gibit, Tibit, Pibit, Eibit, Zibit, Yibit

The function automatically selects the appropriate unit based on the magnitude of the number being formatted [index.js:L153-L154].

FOLLOW_UPS:

• How does the library choose which unit to use?
• What's the difference between binary and SI prefix modes?
• Can I customize the unit display format?