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Removing people using UTF-8 ?‍?‍?‍?

 3 years ago
source link: https://dev.to/jancizmar/removing-people-using-utf-8-3d2f
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Jan Cizmar

Posted on Nov 25

Removing people using UTF-8 ?‍?‍?‍?

While I was writing my new article I found out about really cool thing I am going to share with you.

Check out this emoji containing 4 people ?‍?‍?‍?.

While I was trying to delete ?‍?‍?‍? in VSCode using backspace it
didn't disappear, but it just changed to this ?‍?‍?. After hitting another backspace it changed to ?‍? then to ? and then it finally disappeared. So it goes

?‍?‍?‍? ⌫ ?‍?‍? ⌫ ?‍? ⌫ ? ⌫
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Why this happens?

When we look on the decoded symbols, we can see that the symbols are equal to this in hex:

?‍?‍?‍?:  0x1f469 0x200d 0x1f469 0x200d 0x1f466 0x200d 0x1f466
?‍?‍?‍?:  0x1f469 0x200d 0x1f469 0x200d 0x1f466
?‍?:    0x1f469 0x200d 0x1f469
?:   0x1f469
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While 0x200d character is a "ZERO WIDTH JOINER" which tells the renderer, that the preceding and following characters should join each other. ?

So it is like ? + ? + ? + ?.

Cool isn't it?

Removing of single woman works as well, so this ?‍?‍? can transformed to the hex code like this: 0x1f469 0x200d 0x1f466 0x200d 0x1f466


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