Frank Vel Frank Vel - 1 month ago 8
Javascript Question

Regex: non-word-char preceded by space or at the beginning of a line

I'm trying to match

@
's that are preceeded by nothing or whitespace like in the following example:

@one
@two
who@three
/@four


My approach is
(^|\s)@
, but this captures
one two three four
.
\s@
only captures
two
. How do I get
one two
, without getting
three four
?

If it's relevant, all
@
's are succeeded by a letter.

Answer Source

How about ^\s*@ ? That is, start of line followed by zero or more whitespace then @. (Note, different laguanges have different regex rules)