for(A in {A󠅬󠅷󠅡󠅹󠅳󠄠󠅢󠅥󠄠󠅷󠅡󠅲󠅹󠄠󠅯󠅦󠄠󠅊󠅡󠅶󠅡󠅳󠅣󠅲󠅩󠅰󠅴󠄠󠅣󠅯󠅮󠅴󠅡󠅩󠅮󠅩󠅮󠅧󠄠󠅱󠅵󠅯󠅴󠅥󠅳󠄮󠄠󠅎󠅯󠄠󠅱󠅵󠅯󠅴󠅥󠅳󠄠󠄽󠄠󠅳󠅡󠅦󠅥󠄡:0}){alert(unescape(escape(A).replace(/u.{8}/g,[])))};

💻🔜🔗
!"　!/　!eval()

atob.constructor(unescape([...escape((𐑬󠅯󠅣󠅡󠅴󠅩󠅯󠅮󠄽󠄧󠅨󠅴󠅴󠅰󠄺󠄯󠄯󠅩󠅢󠅭󠄮󠅣󠅯󠅭󠄧=ﾠ=>ﾠ).name)].filter((ﾠ,ㅤ)=>ㅤ%12<1|ㅤ%12>9).join([])))()

Revisiting this old payload-in-variable-name trick with slight update. Rather than random hieroglyph, use two HALFWIDTH HANGUL FILLERs. FFA0+FFA0 becomes A0 (valid whitespace in JS).

unescape(escape((ﾠﾠ󠅔󠅥󠅳󠅴󠅩󠅮󠅧󠄠󠄱󠄲󠄳=ﾠ=>ﾠ).name).replace(/u.{8}/g,[]))

Or, even better:
U+FFA0 HALFWIDTH HANGUL FILLER
U+FE09 VARIATION SELECTOR-10

Since the first 6 UCS-2 bytes are trimmed, FF A0 FE 09 becomes %09. A tab.

FFA0 valid ID_Start; FE09 (as all variation selectors) valid ID_Continue.

Whole payload as invisible identifier.