literal unescape and escape

一つ目のテキストエリアの Javascript 文字列リテラル内の \u00bc, \u{10140}, \x2669, \xd834\xdd3d 等のエスケープ文字を “¼”, “𐅀”, “♩”, “𝄽” 等の Unicode 文字に変換して、二つ目のテキストエリアに表示します。一方で、二つ目のテキストエリアの Javascript 文字列リテラル内の “¼”, “𐅀”, “♩”, “𝄽” 等の Unicode 文字を \u00bc, \u{10140}, \u2669, \u{1d13d} 等のエスケープ文字に変換して一つ目のテキストエリアに表示します。

Escape characters such as \u00bc, \u{10140}, \x2669, \xd834\xdd3d in Javascript string literals in the first text area are converted to Unicode characters such as “¼”, “𐅀”, “♩”, “𝄽” and displayed in the second text area. On the other hand, Unicode characters such as “¼”, “𐅀”, “♩”, “𝄽” in Javascript string literals in the second text area are converted to escape characters such as \u00bc, \u{10140}, \u2669, \u{1d13d} and displayed in the first text area.