Regex match inverse group in javascript

Question

I want to match strings that don't have abc, defor ghi. Opposite:

/(abc|def|ghi)/

How do I cancel this? I do not want

/(^abc|^def|^ghi)/

because there will be more “logic." (If that’s even what he does.)

How do I cancel an entire group match (or whatever it is called)?

(I'm trying to beat 5. at http://regex.alf.nu/ )

Answer 1

Use a negative view:

/^(?!.*?(abc|def|ghi)).*$/

Answer 2

You need to define a capture group, including start ( ^) and end of line ( $), or you will get false positive matches:

/^((?!(abc|def|ghi)).)*$/

:

:

• ABC
• bobabc
• abcjoe

: http://regex101.com/r/yI3tF4

Answer 3

Solution 5. at http://regex.alf.nu/ : ^((?!(.)(.)\3\2).)*$
Explanation: Regular expression to match a string that does not contain a word?

Answer 4

Use of negative references:

/^(?!.*abc)(?!.*def)(?!.*ghi)/
/^(?!.*(abc|def|ghi))/