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Are there any invisible characters? I have checked Google for invisible characters and ended up with many answers but I'm not sure about those. Can someone on Stack Overflow tell me more about this?
Also I have checked a profile on Facebook and found that the user didn't have any name to his profile? How can this be possible? Is it some database issue? Hacking or something?
When I searched over Internet, I found that 200D is an ASCII value with an invisible character. Is it true?
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The magic sequence of keys Alt-255 typed at numeric keypad places an Invisible Character symbol into text. This character looks like a blank space in the program code and SAS output but is processed and printed by many programs as a valid text character.
For example, the common whitespace symbol U+0020 SPACE (also ASCII 32) represents a blank space punctuation character in text, used as a word divider in Western scripts.
Press and hold “Alt” key and while holding it, type digit keys 255 at the numeric keypad. 4. Release the “Alt” key.
I just went through the character map to get these. They are all in Calibri.
Number Name HTML Code Appearance ------ -------------------- --------- ---------- U+2000 En Quad   " " U+2001 Em Quad   " " U+2002 En Space   " " U+2003 Em Space   " " U+2004 Three-Per-Em Space   " " U+2005 Four-Per-Em Space   " " U+2006 Six-Per-Em Space   " " U+2007 Figure Space   " " U+2008 Punctuation Space   " " U+2009 Thin Space   " " U+200A Hair Space   " " U+200B Zero-Width Space ​ "" U+200C Zero Width Non-Joiner ‌ "" U+200D Zero Width Joiner ‍ "" U+200E Left-To-Right Mark ‎ "" U+200F Right-To-Left Mark ‏ "" U+202F Narrow No-Break Space   " "
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