Regular Expressions 101

1st Alternative\n(\/\*[^*]*\*\/)

\na line-feed (newline) character (ASCII 10)

Group 1(\/\*[^*]*\*\/)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

Negated Character Class[^*]*

*matches any number of characters outside the set below:

*the literal * (42₁₀ / 52₈ / 2A₁₆)

\*the literal * (42₁₀ / 52₈ / 2A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative(\/\/[^*]*)

Group 2(\/\/[^*]*)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negated Character Class[^*]*

*matches any number of characters outside the set below:

*the literal * (42₁₀ / 52₈ / 2A₁₆)

3rd Alternative\n(--[^.].*)

\na line-feed (newline) character (ASCII 10)

Group 3(--[^.].*)

--the literal text --

Negated Character Class[^.]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

.*any character (except for line terminators), repeated any number of times

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

\n(\/\*[^*]*\*\/)|(\/\/[^*]*)|\n(--[^.].*)

New

sql = `HELLO 1
-- comments 1
HELLO 2
-- comments 2
HELLO3
`;