pub const SHA1_HEX_LENGTH: usize = 40;Expand description
What:
Length in hexadecimal digits of a SHA-1 object name.
usize is the unsigned integer every length and index uses
(siblings u32,
u64,
i64).
Why:
usize is what .len() returns,
so comparing needs no conversion.
In TS you’d write (pseudocode):
const SHA1_HEX_LENGTH = 40;