Struct Units 

pub struct Units(/* private fields */);

A JS string decoded into its UTF-16 code units, so that index arithmetic can be done directly on the units JS counts.

Implementations

impl Units

pub fn of(s: &str) -> Self

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn as_slice(&self) -> &[u16]

pub fn unit(&self, i: usize) -> Option<u16>

The code unit at i — the value charCodeAt(i) reports.

pub fn code_point(&self, i: usize) -> Option<u32>

The code point starting at i: a full astral scalar when i is the leading half of a surrogate pair, otherwise the bare unit. This is codePointAt, which — unlike charCodeAt — looks ahead one unit.

pub fn slice(&self, lo: usize, hi: usize) -> String

The substring [lo, hi) in code units. An index that splits a surrogate pair yields U+FFFD for the orphaned half — see the module docs.

pub fn unit_str(&self, i: usize) -> Option<String>

The single code unit at i as a string — charAt(i) / s[i].