javallone/regexper

in pattern '[every]' the 'e' while show twice

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in pattern '[every]' the 'e' while show twice,is this a problem ?

No, that's just how regex works.

You only need to use '[evry]', but it doesn't matter and regex will treat them as their own parts (though the result will of course act as if it ignored it).

Duplicate items in character sets are no longer displayed in the regexper rewrite that just went live. Code is available on https://github.com/javallone/regexper-static