​​​​​'\u200b'zero width space→​← ​​​​​'\u200b'zero width space→​← maps to ​ ​​​​​'\u200b'zero width space→​← maps to ​ ​​​​​'\u200b'zero width space→​← maps to ​      '\u00a0'non-breaking space→ ←normally code as html4             '\u205f''\u200a'thick space→  ←      '\u2009'thin space→ ←normally use html4        '\u200a'hair space→ ← ​​​​​'\u200b'zero width space→​←      '\u2004'three-per-em space→ ←      '\u2005'four-per-em space→ ←      '\u2003'em space→ ←      '\u2002'en space→ ←      '\u200a'hair space→ ←      '\u00a0'non-breaking space→ ←      '\u2007'figure space→ ←      '\u2008'punctuation space→ ←      '\u2009'thin space→ ←