(e.g. \012) or Unicode (e.g. \u000a) escape. 2.3.3 Non-ASCII characters For the remaining non-ASCII characters, either the actual Unicode character (e.g. ∞) or the equivalent Unicode escape (e.g. \u221e) and understand, although Unicode escapes outside string literals and comments are strongly dis- couraged. Tip: In the Unicode escape case, and occasionally even when actual Unicode characters are used, an

it enhances readability — for example, "\xEF\xBB\xBF", or, even more simply, u8"\uFEFF", is the Unicode zero-width no-break space character, which would be invisible if included in the source as straight