Segmented one-time-code input: length single-digit boxes that behave as one
field. Sequential typing advances focus, Backspace retreats, paste / iOS SMS
autofill fills the whole code. The value is always a contiguous digit string,
so callers never deal with gaps. Numeric-only; non-digits are ignored.
Segmented one-time-code input:
lengthsingle-digit boxes that behave as one field. Sequential typing advances focus, Backspace retreats, paste / iOS SMS autofill fills the whole code. The value is always a contiguous digit string, so callers never deal with gaps. Numeric-only; non-digits are ignored.