Regular Expressions 101

Pro

\ban ASCII word boundary

newthe literal text new (case sensitive)

\s+any whitespace character, repeated at least once

Arraythe literal text Array (case sensitive)

\s*any whitespace character, repeated any number of times

Character Class[(]

(the literal ( (40₁₀ / 50₈ / 28₁₆)

\s*any whitespace character, repeated any number of times

Group 1(".*?)

"the literal " (34₁₀ / 42₈ / 22₁₆)

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

Positive Lookahead(?=[)]\s*,\s*new\s+Array|\s*[)]\s*[)]\s*[^(]+$)

1st Alternative[)]\s*,\s*new\s+Array

Character Class[)]

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\s*any whitespace character, repeated any number of times

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\s*any whitespace character, repeated any number of times

newthe literal text new (case sensitive)

\s+any whitespace character, repeated at least once

Arraythe literal text Array (case sensitive)

2nd Alternative\s*[)]\s*[)]\s*[^(]+$

\s*any whitespace character, repeated any number of times

Character Class[)]

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\s*any whitespace character, repeated any number of times

Character Class[)]

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\s*any whitespace character, repeated any number of times

Negated Character Class[^(]+

+matches at least one character outside the set below:

(the literal ( (40₁₀ / 50₈ / 28₁₆)

$end of line

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

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25 tokens

\bnew\s+Array\s*[(]\s*(".*?)(?=[)]\s*,\s*new\s+Array|\s*[)]\s*[)]\s*[^(]+$)

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