I got Invalid range in character class issue when trying to use regex
/^[a-zA-Zа-яА-ЯЁё0-9_-\s]{6,20}$/
But the issue is only in Firefox, in Chrome it's ok.
With this regex I am trying to say "only latin, russian letters, numbers, space and '_' and '-' signs allowed"
The _-\\s
is creating a range between the underscore and space characters. You need to either escape the -
as in _\\-\\s
or put it at the end:
[a-zA-Zа-яА-ЯЁё0-9_\s-]
Also beware of the а-я
range. If this is the same as the Latin 1 a
the range may not be what you expect at all.
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