javascript - regular expression to avoid repeat for 4 times -


i tried regular expression avoid repeat of digits more 4 continuous times 11111 , working fine:

([0-9])\1{4}

but need avoid repeat of digits more 6 times 11111121 don't know how it.

thanks

you can use following lookahead assertion:

^(?!.*(\d)(?:.*\1){6})(?!.*(\d)\2{4})\d+

see demo


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