How to match “anything up until this sequence of characters” in a regular expression?

Question

Take this regular expression: /^[^abc]/. This will match any single character at the beginning of a string, except a, b, or c.

If you add a *

Answer 1

.*(\s)*?(?=abc)

For those who want to include line breaks too.

It will match anything and everything(including line breaks(no matter how many or even if no line break) ) until abc is found.