Regular Expressions 101

Explanation

Pro

Group 1(.\S. )

.any character (except for line terminators)

\Sany non-whitespace character

.any character (except for line terminators)

the literal (32₁₀ / 40₈ / 20₁₆)

Group 2(//)

//the literal text //

Group 3(.\S.)

.any character (except for line terminators)

\Sany non-whitespace character

.any character (except for line terminators)

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

(.\S. )(//)(.\S.)

New

someCode() // someComment

$2$3\n$1

someCode() // someComment