비한정

필수 변형 선택자가 빠져 있어 일부 플랫폼에서 이모지로 렌더링되지 않을 수 있는 시퀀스.

An unqualified emoji is missing a *required* VS-16 character. Without it, the character may render as a plain text symbol rather than a colorful emoji glyph on some platforms.

Characters like ♥ (U+2764), ☺ (U+263A), and ✈ (U+2708) are common examples — they originated as text symbols and need VS-16 to reliably trigger emoji presentation. Without it, rendering depends on platform defaults.

When building applications that work with emoji, always normalize to fully qualified forms for storage and comparison.